Acanthosis nigricans presents as a darkening and velvety thickening of the skin, most commonly affecting the neck, armpits, and groin region. It is most commonly associated with obesity and insulin resistance; people who have acanthosis nigricans are more likely to develop diabetes. In very rare instances,

Acne is a common skin condition caused by the blockage of hair follicles by sebum (oil), dead skin cells, and bacteria. The blocked pores lead to whiteheads, blackheads, inflammatory papules or nodules (red, tender bumps), pustules (pus-filled bumps), and even cysts. Acne breakouts can occur at any age

Acne keloidalis nuchae is a chronic inflammatory condition that affects mainly Black men. Affected individuals develop pink to flesh colored, dome shaped papules and pustules around the hair follicles on the posterior scalp and neck. These firm, scar-like bumps can gradually enlarge and coalesce to form

Actinic keratoses are precancerous growths on the skin caused by long term exposure to ultraviolet radiation, usually in the form of sunlight or tanning beds. They frequently appear on sun exposure areas such as the scalp, face, back of the hands, and forearms, and are characterized by rough, dry lesions

OVERVIEW: Have you recently experienced dry patches of skin that are red, inflamed, and extremely itchy? You may have atopic dermatitis or eczema and require a consultation from a licensed medical professional or dermatologist. Here's everything you need to know about the causes, symptoms, and treatment

Basal cell carcinoma is the most common type of skin cancer and the most frequently occurring form of all cancers. It typically occurs on sun-exposed areas such as the scalp, face, nose, ears, neck, chest, shoulders, or back. It can present as a non-healing sore, a shiny or pearly bump, or even a pink,

A boil, also known as a furuncle, is a painful, pus-filled bump that results from a bacterial infection of the hair follicle. It is a common skin infection, typically caused by a bacteria called Staphylococcus aureus. The infection usually starts as a tender, pinkish-red, bump which fills with pus- becoming

Bullous pemphigoid is an autoimmune skin condition. Affected individuals complain of significant itching and can develop an eczema-like rash, a hive-like rash, or large, fluid-filled blisters on the skin. Common areas of involvement include the groin, axillae (armpits), trunk, thighs, and forearms. The

Candidiasis is an infection caused by the yeast Candida. Candida skin infections (cutaneous candidiasis) can occur at any site, but tends to favor warm, damp environments such as the skin folds and the groin region. Candida infections can also occur in the mouth (oral thrush) and in or around the nails

Cellulitis is a common bacterial infection of the deeper structures of the skin. The infection presents as a focal area of redness, swelling, and pain which is warm to the touch. These skin findings can be accompanied with fevers, chills, fatigue, and malaise. Cellulitis can affect any part of the body,

Cherry angiomas are benign, non worrisome, vascular growths which typically appear in adults over the age of 30. These blood vessel growths can range in color from pink to red to purple. They can range in size from pinhead sized to 1cm in diameter. Most commonly, they appear as red, dome shaped papules

Contact dermatitis is a form of eczema that develops after the skin comes in contact with a substance that acts as an irritant or allergen. The affected areas become red, inflamed, and itchy. Swelling, blistering, crusting, and oozing can also occur. Irritant contact dermatitis is the more common type,

Cysts are one of the most common benign skin growths. A cyst consists of a sac or enclosed capsule filled with fluid or semisolid material. Typically, they are round or dome shaped, nodules or lumps on or underneath the skin. The overlying skin can be unchanged or have a small opening or punctum. They

Dermatitis herpetiformis is an autoimmune skin disease that causes recurrent, intensely itchy blisters to form on the elbows, knees, back, buttocks, and/or scalp. It is linked to the ingestion of gluten found in wheat. It can also occur with celiac disease and has been associated with thyroid disease.

Dermatofibromas are common, benign skin growths most typically found on legs of women. They present as a pinkish brown, firm, scar-like bump. Sometimes, their appearance is attributed to a preceding insect bite, ingrown hair, or other minor injury or trauma. As the skin growths are harmless, no treatment

Dermatomyositis is a rare disease that causes a skin rash and muscle weakness. The skin rash can present reddish to purplish, dusky discoloration and swelling of the eyelids, particularly the upper eyelids (heliotrope rash). A red rash may also appear on the chest, shoulder, neck or back. Affected individuals

Dyshidrotic eczema is a form of eczema that manifests as intensely itchy blisters that develop on the sides of the fingers, toes, palms, or soles. It can be caused by atopic dermatitis, contact dermatitis, or an id reaction (reaction to a skin infection or skin rash at another site). The condition is

Eczema refers to a group of conditions characterized by dry, inflamed, and itchy skin. The most common kind of eczema is atopic dermatitis. Other forms of eczema include contact dermatitis, irritant dermatitis, nummular dermatitis, and dyshidrotic eczema. The term eczema is often used by people to refer

Folliculitis is the medical term for inflammation of a hair follicle. It typically presents as pink bumps or pustules (pus filled bumps) centered around a hair follicle. The condition can appear anywhere on the body where there are hairs, including on the face, chest, back, buttocks, and/or legs. The

Gential herpes is a sexually transmitted infection caused by an infection with the herpes simplex virus (HSV). There are two types of the herpes simplex virus- herpes simplex virus type 1 (HSV-1) and herpes simplex virus type 2 (HSV-2). Either type can cause genital herpes, but HSV-2 is responsible for

Granuloma annulare is a harmless type of skin rash that often presents with ring-shaped lesions. Although the condition can appear anywhere on the skin, favored sites are the hands, feet, elbows, and ankles. It is typically found in children, teenagers, and young adults. Granuloma annulare is more prevalent

Topical retinoids are available in many over the counter skin care products as well as prescription strength medications. They work to treat a variety of skin care problems ranging from fine lines and wrinkles to acne breakouts and psoriasis. Common side effects of using topical retinoids include: dryness,

If you experience sweating that seems more excessive than normal on your hands, feet, or armpits, you may have hyperhidrosis. A board-certified dermatologist can help—read on to find out all about excessive sweating, what causes it, and treatment options to control your symptoms. What is Hyperhidrosis? Also

A hypertrophic scar is a thickened, raised, oftentimes pink or red scar. Hypertrophic scars can be symptomatic - causing burning, itching, or discomfort. These thickened, raised scars are more likely to occur in areas where there is significant tension on a healing wound; examples include the back, chest,

Impetigo is a common bacterial skin infection that typically affects young children. It is most often caused by a bacteria called Staphylococcus aureus or Streptococcus pyogenes. Affected individuals present with sores that break open leading to honey-colored crusts and scabs. Though lesions can be found

An infantile hemangioma is a kind of vascular tumor made up of blood vessels, commonly called a “strawberry birthmark.” The vascular tumor can be superficial (growing on the skin surface), appearing as a bright red, bumpy, lesion. It can also be deep (growing under the skin), presenting as a bluish

Intertrigo is a common rash found in the folds of the skin. Common areas of involvement include the groin, in the folds of the abdomen, and under the breasts. Because of the friction, warmth, and moisture in the skin folds, the affected areas become red and raw. Symptoms can also include itching and

Keloids are thick, firm, hard growths due to excessive scar tissue formation. They differ from ordinary scars and hypertrophic scars in that the scar tissue extends and spreads beyond the original wound margin. Rarely, these growths can occur spontaneously, even without any preceding skin injury. Keloids

Keratosis pilaris is a common skin condition characterized by rough, bumpy skin most often found on the back of the arms, thighs, and cheeks. It is a common finding in those with dry and sensitive skin. It typically affects children and teenagers and can improve or resolve over time. The condition is

Lentigo is a benign skin growth that resembles a freckle. It is usually a tan or brown spot that is flat or slightly raised. It can vary in size and shape and can occur as a singular lesion or as multiple lesions (lentigines). Lentigines have been classified into several types depending on their characteristics,

Lice are tiny insects that live on human hair and clothing fibers and can be seen with the naked eye. These tiny bugs attach to the hair and feed on human blood, causing intense itching in the affected areas. People can suffer from 3 different types of infestation: head lice (pediculosis capitis), body

Lichen planus is an inflammatory condition that can affect the skin, hair, nails, and mucous membranes (such as the mouth and genital region). On the skin, it presents as small, pink to purple, itchy, flat-topped papules. Though the rash can appear anywhere (including on the genital skin), favored sites

Lichen sclerosus is a chronic skin condition most commonly affects the genital skin. The affected areas become thin, white, crinkled, irritated, and/or intensely itchy. Blisters and sores can also form. Left untreated, the condition can lead to scarring and increase an individual’s risk for skin cancer,

Lichen simplex chronicus is a condition where repeated scratching or rubbing of a site creates a localized, itchy, thickened, leathery patch of skin. Lichen simplex chronicus can present as a solitary lesion or as multiple lesions—usually in areas that are easy to reach. The most commonly involved

Lipomas are common fatty tumors that present as soft or rubbery lumps or bumps underneath the skin that are easily moved. They can occur as a solitary lesion or multiple lesions (often occurring in families). Lipomas can occur anywhere on the body where fat tissue is present, but are most common on the