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Skin Diseases: 87 Diseases and Conditions Affecting the Skin, Hair and Nails


Dermatology is the branch of medicine that deals with skin diseases. It is a specialty from both medical and surgical aspects.

A dermatologist is a medical doctor who treats diseases related to the skin, hair, nails, and certain cosmetic problems.

Skin diseases

Here's a guide to skin diseases and conditions that affect the skin, hair, and nails according to the American Academy of Dermatology [s].

1. Acanthosis nigricans

A skin condition that causes one or more areas of skin to darken and thicken. The skin is often accompanied by a little velvet.

See moreAcanthosis Nigricans: Signs, Symptoms, Causes and Treatment

Skin Diseases

2. Acne

One of the most famous skin diseases. When you have acne, you need two things to have clearer skin. The first is acne-friendly skin care. You also need the right treatment for each type of acne blemish you have.

See more12 Acne Causes and Treatment

3. Acne scars

If acne scars bother you, a safe and effective treatment is available. The treatment can reduce acne scars that cause depressions in the skin. The treatment can also safely reduce raised acne scars.

See moreAcne Scars: 4 Symptoms, Causes, 18 Treatments and 4 Ways of Prevent

4. Actinic keratosis

If you have actinic keratosis (AK) on your skin, you have one of the most common skin conditions that dermatologists treat. These precancerous skin growths are common. Because many people rarely protect their skin from the sun with sunscreen, clothing, and shade.

See moreActinic Keratosis: Symptoms, Causes, Treatment and Prevention

5. Alopecia areata

This skin disease develops when the body attacks its own hair follicles, which can cause hair loss anywhere on the body.

Many people who develop alopecia areata are otherwise healthy. They have hair loss and sometimes nail changes, but they remain healthy.

See more: Soon

6. Athlete\'s foot

Athlete's foot or tinea pedis is a fungal infection of the skin between the toes. It is a form of ringworm. Most people get it from walking barefoot in damp public places, such as by a pool deck or a water source.

See moreAthlete's Foot Fungus: Causes, Symptoms, Treatment and Prevention

7. Atopic dermatitis

Eczema, or atopic eczema, is a condition that usually occurs around the age of five and causes a very itchy rash that appears and disappears. Symptoms range from excessively dry, itchy skin to a painful, itchy rash that causes sleepless nights and interferes with daily life.

See more: Soon

8. Basal cell carcinoma

A type of skin cancer that most commonly occurs on the face, often invades surrounding tissues but rarely metastasizes. If you've been diagnosed with basal cell carcinoma, you have a lot of company. As the most common type of cancer in the world.

See more: Soon

9. Bed bugs

Bed bugs are small insects that feed on human blood. While bed bugs are feeding on you, you are unlikely to notice. Most people sleep when they are bitten.

Also, before the bed bug draws your blood, it injects you with a substance that prevents you from feeling the sting. When you wake up, you may notice itching. So you have a skin disease.

See moreBed Bugs: Signs, Symptoms, Causes, and Treatment

10. Birthmarks

Birthmarks come in many shapes and colors. You may see a flat or raised mark. It may be the size of a pinhead or cover a large area of your child's skin.

Most birthmarks fall somewhere in between. A birthmark can be pink, red, tan, brown, or any other color. Some look like a bruise. Others look like a spot on the skin.

See more: Soon

11. Boils and styes

It is considered one of the most common skin diseases. A boil is a pus-filled skin infection that occurs around a hair follicle or sebaceous gland.

This causes a red, painful lump to form with pus collecting under the skin. A boil that occurs on the eyelid is called a sting.

See more: Soon

12. Botulinum toxin

It is called botulinum toxin or botox. When you look in the mirror, do you see deep streaks? These lines annoy many people. To reduce these lines, many choose botulinum therapy.

Such patients can return to most of their daily activities right after the operation. They love that most people see results within 3 to 7 days and sometimes longer.

See more: Soon

13. Cellulitis

It is a common and serious infection caused by bacteria. The bacteria infect the deeper layers of the skin and subcutaneous tissue.

The first sign of cellulitis is usually red, swollen skin. When you touch the affected area, it often feels warm and sore.

See more: Soon

14. Chemical peels

Chemical peels: Do you wish you could simply exfoliate the signs of aging from your skin? Dermatologists use chemical peels to do this. 

Chemical peels can reduce many signs of aging on the face as well as the hands, neck and chest.

See more: Soon

15. Chickenpox

A highly contagious skin disease caused by a virus. Although the incidence of chickenpox has decreased significantly since the development of the chickenpox vaccine, there are still children who get chickenpox every year.

Fortunately, there is a lot parents can do at home to help ease their children's symptoms and prevent skin infections.

See more: soon

16. Cold sores

A small pimple or group of blisters that usually appear on the lip or around the mouth. Cold sores are caused by the herpes simplex virus (HSV).

The virus remains in the body after the cold sores are gone. If the virus reactivates or wakes up, you may get cold sores again.

See more: soon

17. Contact dermatitis

Cutaneous T-cell lymphoma (CTCL) is a rare type of leukemia. It begins in a type of white blood cell called a T lymphocyte (T cell). T cells help prevent infection and other diseases.

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18. Dandruff

A common scalp condition in which small pieces of dry skin shed from the scalp.

If you have dark hair or wear dark colors, you may notice flaking in your hair or on your shoulders. Dandruff may also cause the scalp to itch.

See more: Soon

19. Dermatofibrosarcoma protuberan (DFSP)

Rare skin cancer. It begins in the middle layer of the skin, the dermis. DFSP tends to grow slowly. It rarely spreads to other parts of the body. Because DFSP rarely spreads, this cancer has a high survival rate. However, treatment is important.

Without treatment, DFSP can grow deep into fat, muscle, and even bone. If this happens, treatment can be difficult.

See more: Soon

20. Diabetes: Dermatologist-recommended skin care for diabetics

When you have diabetes, finding time to take care of your skin can seem like a luxury.

Monitoring your glucose level, sticking to a meal plan, finding time to exercise, and managing stress can definitely take priority.

See more: Soon

21. Diabetes: Warning signs on your skin

This skin condition often begins as small, raised, pimple-like hard bumps. As it progresses, these bumps turn into patches of swollen, hardened skin. The spots can be yellow, red, or brown.

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22. Diaper rash

Baby dermatitis caused by prolonged contact with wet diapers. Babies often experience discomfort from nappy rash, a condition that causes the skin under the nappy to become red and sore.

See moreDiaper Rash: Prevention and Treatment With Sources

23. Dry skin

When the air contains little moisture, it is common to develop dry skin. During the winter, indoor heating or heating to a stove can rob the skin of moisture, leaving the skin dry and cracked.

See more: Soon

24. Dyshidrotic eczema

Eczema dyshidrotic blisters may last for three to four weeks before clearing up. Some people never get blisters again. Dyshidrotic eczema can also be a lifelong debilitating disease.

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25. Eczema

A medical condition in which patches of skin become rough and inflamed, with itchy and bleeding blisters, sometimes caused by a reaction to irritation (eczematous dermatitis) but often have no obvious external cause.

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26. Epidermolysis bullosa

Epidermolysis bullosa (EB) is a group of rare diseases that easily cause skin ulcers. Epidermolysis bullosa causes blisters that burst quickly and leave slow-healing wounds like the one on this child's knee.

See more: Soon

27. Folliculitis

A common skin infection that develops in hair follicles. Folliculitis can appear anywhere on the skin, except for the palms of the hands and the soles of the feet.

Symptoms can vary. You may not feel anything. Sometimes, the infection causes the skin to itch. Your skin may also feel sore.

See more: Soon

28. Genital herpes

Genital herpes: a sexually transmitted disease (STD). It is caused by the herpes simplex virus. Anyone who is sexually active can be infected with this virus.

Many people who contract the virus never know they have it because they do not have symptoms. They do not develop painful ulcers.

See more: Soon

29. Genital warts

Genital warts: warts that appear in the genital area. There can be a single wart or a group of warts. People get these warts by picking up the human papillomavirus (HPV) from someone who is already infected with this virus.

See more: Soon

30. Granuloma annulare

A skin condition that usually causes a rash. It is not some kind of cancer. It is not contagious. A mass of tissue, usually produced in response to infection, inflammation, or the presence of a foreign substance.

It rarely causes symptoms, such as pain or itching, but it can appear on your skin in different ways.

See more: Soon

31. Hair loss

It can be difficult to talk about hair loss. In many cases, hair loss can be stopped or treated.

32. Hand, foot and mouth disease

Hand, Foot, and Mouth Disease (HFMD) is an infectious disease caused by a virus. While one of several viruses can cause it. You can catch HFMD from close contact with someone who has it.

You can also catch it when you touch something, such as a toy or doorknob, that is contaminated with a virus that causes this disease.

See more: Soon

33. Head lice

A louse that infects the scalp and human head hair and is especially prevalent among school children.

See more: Soon

34. Heart disease: Warning signs on your skin

Your skin and nails can have warning signs, which is why your dermatologist may be the first doctor to notice that you have heart disease.

If you know what to look for, you can also find the warning signs of heart disease on your skin and nails.

See more: Soon

35. Herpes simplex

Viral infection, caused by a group of herpes viruses, which may cause cold sores, inflammation of the genitals or conjunctivitis.

See more: Soon

36. Hidradenitis suppurativa

Hidradenitis suppurativa (HS) is an unrecognized skin disease that causes deep, painful lumps under the skin, usually in the armpits or groin.

Many people mistake deep lumps for painful pimples or acne cysts. Hidradenitis suppurativa can also be misdiagnosed as a boil, infected hair follicles (folliculitis), or a sexually transmitted disease.

See more: Soon

37. Hives

Urticaria or urticaria: a rash of red, round bruises on the skin that causes intense itching, sometimes accompanied by serious swelling caused by an allergic reaction, usually to certain foods.

See more: Soon

38. Hyperhidrosis

Excessive sweating occurs when a person sweats more than necessary. Yes, it is necessary to sweat. Sweating cools the body, which prevents us from overheating.

However, people with hyperhidrosis sweat when the body does not need cooling.

See more: Soon

39. Ichthyosis vulgaris

A group of skin conditions that cause extremely dry, thickened and scaly skin. The skin often looks like it has fish scales. There are more than 20 different types of fish.

The most common type is Ichthyosis vulgaris. About 95% of people who get ichthyosis develop this type.

See more: Soon

40. Imiquimod

It is a prescription medicine that you use at home. It comes in a cream that you apply to your skin. Your dermatologist may prescribe imiquimod to treat:

  • AK
  • Basal cell carcinoma
  • Genital warts
See more: Soon

41. Impetigo

It is a common skin infection, especially in children. It is caused by bacteria. It is also highly contagious.

Most people get impetigo through skin-to-skin contact with someone who has it.

See more: Soon

42. Isotretinoin

A prescription medication for severe acne. This type of acne causes deep and painful cysts and nodules. They can be the size of a pencil eraser or larger. When this acne disappears, scars often appear.

See more: Soon

43. Keloids

A kind of raised scar. Unlike other raised scars, a keloid grows much larger than the wound that caused the scar. Not everyone who has a scar develops keloids.

If your skin is prone to keloids, anything that can cause a scar can lead to keloids. This includes a wound, burn, or severe acne.

See more: Soon

44. Keratosis pilaris

Keratosis pilaris, or keratosis pilaris, is a common skin condition that appears as small bumps on the skin.

Some people say these bumps look like goose bumps or the skin of a cut chicken. Others mistake the bumps as small pimples.

Soon more: Soon

45. Kidney disease: It can affect your skin

The effect of kidney disease on the skin. If you have kidney disease, you won't see early warning signs on your skin. However, as the disease progresses.

See more: Soon

46. Leprosy

It is an infectious skin disease that affects the skin, mucous membranes, and nerves, causing discoloration and lumps in the skin, and in severe cases, it leads to deformities.

See more: Soon

47. Lichen planus

Many people develop lichen planus. This disease can develop in one or several parts of the body. It can appear on the skin or inside the mouth. Sometimes, it appears in both places.

Lichen planus can change the way your fingernails or toenails appear. It can also appear on a person's genitals or scalp.

See more: Soon

48. Lupus

Lupus: from various diseases or conditions characterized by dermatitis, especially lupus vulgaris or lupus erythematosus.

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49. Lyme disease

A disturbance in the structure or function of a person, animal or plant, especially one that results in specific signs or symptoms or affects a specific location and is not merely a direct result of a bodily injury.

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50. Melanoma

A tumor in the melanin-forming cells, especially a malignant tumor associated with skin cancer.

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51. Melasma

A common skin problem. It causes brown to gray patches to appear, usually on the face. Most people get it on their cheeks, bridge of their nose, forehead, chin, and above their upper lip.

It can also appear on other parts of the body that are exposed to a lot of sunlight, such as the forearms and neck.

See more: Soon

52. Merkel cell carcinoma

Merkel cell carcinoma (MCC) is a rare skin cancer.

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53. Moles

Moles are common. Almost everyone has a few of them. Fair-skinned adults often have more moles. They may have 10 to 40 moles on their skin. It's normal.

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54. Molluscum contagiosum

A chronic viral disorder of the skin characterized by clusters of small, smooth, painless pink nodules with a central depression, which, when pressed, produce a milky fluid.

See more: Soon

55. Nail fungus

It is easy to get a fungal infection in the nails. If you have a fungal infection in your feet, the fungus can spread to one or more of your nails. This is very common.

See more: Soon

56. Neurodermatitis

Itchy patch of skin is the cause of the rash. This itchy patch often appears on the arm, leg, back of the neck, scalp, or groin area.

When it begins in the groin area, it tends to develop on the anus, scrotum, or vulva.

See more: Soon

57. Nickel allergy

Nickel is one of the most common causes of allergic contact dermatitis: a rash or irritation from touching an allergen.

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58. Nummular dermatitis

A condition of the skin in which it becomes red, swollen and painful, sometimes with small blisters, caused by direct irritation of the skin by an external agent or an allergic reaction to it.

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59. Ocular rosacea

A condition in which some of the blood vessels in the face enlarge, giving the cheeks and nose a flushed appearance.

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60. Pemphigus

Most people get blisters on their skin. With some types of pemphigus, blisters form inside the mouth.

A few types cause blisters on moist tissue, such as those lining the nose, eyes, throat, anus, or genitals.

See more: Soon

61. Perioral dermatitis

Most people get blisters on their skin. With some types of pemphigus, blisters form inside the mouth.

A few types cause blisters on moist tissue, such as those lining the nose, eyes, throat, anus, or genitals.

See more: Soon

62. Pityriasis rosea

This condition causes a rash that goes away on its own. The first sign of this rash is often a large oval patch on the skin, followed by many small spots or bumps.

See more: Soon

63. Poison ivy - oak - sumac

While poison ivy is the most common cause of contact dermatitis in the United States, a host of other common plants are capable of producing skin reactions.

If you think you've touched one of these plants, acting quickly may prevent a rash.

See more: Soon

64. Psoriasis

A skin disease characterized by red, scaly, itchy patches.

See more: Soon

65. Psoriatic arthritis

Do you have psoriasis? If so, it is important to pay attention to your joints. Some people with psoriasis develop a type of arthritis called psoriatic arthritis.

See more: Soon

66. Rashes

Rashes: Rashes can appear as spots, bruises, or blisters. Find out when you need to see a dermatologist for medical treatment.

See more: Soon

67. Ringworm

A contagious, itchy skin disease in small, circular patches caused by a number of fungi and affecting mainly the scalp or feet. The most common form is athlete's foot.

See more: Soon

68. Rosacea

A condition in which some of the blood vessels in the face enlarge, giving the cheeks and nose a flushed appearance.

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69. Sarcoidosis

A chronic disease of unknown etiology characterized by enlargement of the lymph nodes in many parts of the body and the widespread appearance of granulomas derived from the reticuloendothelial system.

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70. Scabies

An infectious skin disease characterized by itching and small, raised red spots, caused by the itch mite.

71. Scalp psoriasis

Scalp psoriasis is a skin disease characterized by red, scaly, itchy patches.

See more: Soon

72. Scars

If you have a scar or stretch marks that bother you, cosmetic treatment can help. Find out what results you can expect and what you should know before receiving treatment.

73. Scleroderma

Chronic hardening and contraction of the skin and connective tissue, either the same area or throughout the body.

See more: Soon

74. Sebaceous carcinoma

Cancer that originates in the epithelial tissue of the skin or in the lining of internal organs.

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75. Seborrheic dermatitis

Seborrheic dermatitis affects children. Oily, scaly patches form on the baby's scalp. The patches can become thick and scaly, but cradle cap is harmless.

Seborrheic dermatitis usually goes away on its own within a few months.

See more: Soon

76. Seborrheic keratoses

A common cutaneous growth. It may sound worrisome because it may look like a wart, a precancerous skin growth (actinic keratosis), or skin cancer.

Despite their appearance, seborrheic keratoses are harmless.

See more: Soon

77. Shingles

If you've had chickenpox, the virus that caused it is still inside your body. When chickenpox is killed, the virus travels from your skin to your nerves.

If this virus returns to your skin, you will get shingles instead of chickenpox.

See more: Soon

78. Skin cancer

The most common type of cancer in the United States, with millions of cases diagnosed each year.

It is also one of the most preventable and highly treatable types of cancer when caught early.

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79. Squamous cell carcinoma

Squamous cells are found throughout the human body. These cells line organs, such as the lungs, throat, and thyroid gland. We also have squamous cells in our skin.

The function of the squamous cells is to protect what lies beneath them. In our skin, these cells sit close to the surface, protecting the tissues underneath.

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80. Stasis dermatitis

While stasis dermatitis is not contagious, it is common. Researchers believe that in the United States, about 15 to 20 million people over the age of 50 live with the disease.

You may know stasis dermatitis by another name. It is also called gravitational dermatitis, venous eczema, or varicose eczema.

See more: Soon

81. Stretch marks

Irregular lines on the skin where it is stretched or bulged, especially due to pregnancy or obesity.

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82. Syphilis

It is a chronic bacterial skin disease that is transmitted mainly through infection during sexual intercourse, but it is also transmitted congenitally through infection of the developing fetus.

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83. Thyroid disease and your skin

Thyroid disease and your skin: Although your thyroid gland is located deep in your neck, your dermatologist may be the first doctor to notice signs of thyroid disease.

This is because many of the signs and symptoms of thyroid disease appear on the skin, hair, and nails.

See more: Soon

84. Tinea versicolor

We all have yeast that lives on our skin. When yeast gets out of control, a person can develop a skin disease called tinea versicolor.

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85. Vitiligo

A condition in which pigment is lost from areas of the skin, leading to the appearance of white patches, often for no apparent reason.

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86. Warts

Benign (not cancerous) skin tumors that appear when the virus infects the top layer of the skin. Viruses that cause warts are called human papillomavirus (HPV).

You are more likely to catch one of these viruses if you cut or damage your skin in some way.

See more: Soon

87. Xeroderma pigmentosum

Dry pigmented skin: A rare genetic defect in the enzyme system that repairs DNA after UV damage, which leads to severe sensitivity to sunlight and a tendency to develop skin cancer.

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