Alopecia: Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Dystrophic Nails: Dystrophic nails are fingernails or toenails that are deformed, thickened or discolored. They can have various causes, ranging from toenail fungus to a skin condition.

Acne:

Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages.

Contact Dermatitis:

Contact dermatitis is a red, itchy rash caused by direct contact with a substance or an allergic reaction to it. The rash isn’t contagious or life-threatening, but it can be very uncomfortable.

Eczema:

Eczema is a condition that makes your skin red and itchy. It’s common in children but can occur at any age.

Perioral Dermatitis (Face Rash):

With perioral dermatitis, small red, pus-filled bumps appear around the mouth. It can also affect the skin around the nose, cheeks and eyes.

Psoriasis:

Psoriasis is a skin disease that causes a rash with itchy, scaly patches, most commonly on the knees, elbows, trunk and scalp.

Rosacea:

Rosacea is a common skin condition that causes blushing or flushing and visible blood vessels in your face. It may also produce small, pus-filled bumps.

Urticaria:

Hives, also known as urticaria (ur-tih-KAR-e-uh), is a skin reaction that causes itchy welts that range in size from small spots to large blotches.

Melasma (Pregnancy Mask):

Melasma is a skin condition characterized by brown or blue-gray patches or freckle-like spots. It’s often called the “mask of pregnancy.” Melasma happens because of overproduction of the cells that make the color of your skin. It is common, harmless and some treatments may help. Melasma usually fades after a few months.

Vitiligo:

Vitiligo (vit-ih-LIE-go) is a disease that causes loss of skin color in patches. The discolored areas usually get bigger with time. The condition can affect the skin on any part of the body. It can also affect hair and the inside of the mouth.

Basal cell carcinomas

Basal cell carcinoma is a type of skin cancer. Basal cell carcinoma often appears as a slightly transparent bump on the skin, though it can take other forms. Basal cell carcinoma occurs most often on areas of the skin that are exposed to the sun, such as your head and neck.

Malignant melanoma

Melanoma is the most serious type of skin cancer. Melanoma mainly form in your skin, but can also form in your eyes and, rarely, inside your body, such as in your nose or throat.

Squamous cell carcinomas

Squamous cell carcinoma of the skin is usually not life-threatening, though it can be aggressive. Untreated, squamous cell carcinoma of the skin can grow large or spread to other parts of your body, causing serious complications.

Impetigo:

Impetigo is a common and highly contagious skin infection that mainly affects infants and young children. It usually appears as reddish sores on the face, especially around the nose and mouth and on the hands and feet.

Molluscum Contagiosum:

Molluscum contagiosum is a fairly common skin infection caused by a virus. It causes round, firm, painless bumps ranging in size from a pinhead to a pencil eraser.

Pityriasis Versicolour:

Pityriasis versicolour (also called tinea versicolour) is a common fungal infection of the skin. The fungus interferes with the normal pigmentation of the skin, resulting in small, discolored patches.
Scabies:

Scabies is an itchy skin condition caused by a tiny burrowing mite called Sarcoptes scabiei. Intense itching occurs in the area where the mite burrows. The urge to scratch may be especially strong at night.

Tinea (Ringworm):

Ringworm of the body (tinea corporis) is a rash caused by a fungal infection. It’s usually an itchy, circular rash with clearer skin in the middle. Ringworm gets its name because of its appearance. No worm is involved.

Warts:

Common warts are small, grainy skin growths that occur most often on your fingers or hands. Rough to the touch, common warts also often feature a pattern of tiny black dots, which are small, clotted blood vessels.

Actinic Keratosis:

An actinic keratosis is a rough, scaly patch on the skin that develops from years of sun exposure. It’s often found on the face, lips, ears, forearms, scalp, neck or back of the hands.

Age Spots:

Age spots are small, flat dark areas on the skin. They vary in size and usually appear on areas exposed to the sun, such as the face, hands, shoulders and arms. Age spots are also called sunspots, liver spots and solar lentigines

Moles:

Moles (nevi) are a common type of skin growth. They often appear as small, dark brown spots and are caused by clusters of pigment-forming cells (melanocytes). Most people have 10 to 40 moles. Most moles are harmless. Rarely, they become cancerous.