Skin cancer is the most prevalent of all type of cancers. It is more common in people with fair skin, especially those who sunburn easily or who have spent extensive time in the sun.Types of skin cancer and pre-cancerous lesionsActinic keratosis (AK) This pre-cancerous lesion feels like a gritty area and may be pink. It is usually only a few millimeters in size. If left untreated, it...

Warts are small rough growths of skin caused by infection with human papilloma virus (HPV). The common warts occur on the fingers and feet (plantar warts) most often, and are frequently seen in children, though they can occur at any age.There are more than 120 types of HPV. Certain types cause warts of the hands, others of the feet, and a few types cause genital warts. Yet others cause flat...

An ingrown toenail occurs when the edge of the nail grows down and into the skin of the toe. There may be pain, redness, and swelling around the nail. The first toe is usually affected, but any toenail can become ingrown.CausesAn ingrown toenail can result from a number of things, but poorly fitting shoes and toenails that are not trimmed properly are the most common causes. When...

More than one in ten babies have red spots at birth or within the first few weeks of life.Nevus flammeusThe most common type of vascular birthmark, these are located on the back of the neck most often, but can also appear on the forehead, eyelids, tip of nose, or upper lip. They are faint pink. The lesions on the face often resolve in the first few years of life, but the lesions...

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Vitiligo is a medical condition that causes the skin to lose color. Some people develop a few spots that may lighten or turn completely white. Others can have widespread loss of skin color. Vitiligo can develop on any part of the body but commonly begins on hands, forearms, feet, or face. There is no way to predict how much color a person will lose.Risk factors Vitiligo affects...

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Types of excessive hair   Hypertrichosis Excess hair in any pattern, whether normal or abnormal May be inherited, due to medications, malnutrition, tumors, or metabolic problems   Hirsutism Excess hair in women in a male pattern, such as the face, chest, or lower abdomen. May be due to hormonal problems, familial tendency, or medications   Methods for hair...

Professional tattoosMost tattoos are placed by professionals, with very fine needles and with devices that place the pigment uniformly within the skin. They may include many different types of pigment to make multi-color tattoos, and they are usually very crisp and very stable over time. Amateur tattoosNon-artists may apply home-made inks with non-standard tools to tattoo the skin. This...

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Scars result when the skin repairs wounds caused by accident, diseases, or surgery. They are a natural part of the healing process.Typically, a scar may appear red and thick at first, and then gradually fade. Many actively healing scars that seem unsightly may heal nicely if given more time.The way a scar forms is affected by an individual's age and the location on the body or face. Younger...

Soft tissue fillers are substances that can be injected into the skin to improve the appearance of fine lines and wrinkles, plump lips, fill hollow cheeks, repair various facial imperfections, improve scars, and elevate deep folds. The result is a smoother, more youthful appearance with minimal "downtime" and maximum safety.Role of fillersThe aging process generally causes a loss...

Normal facial gestures cause wrinkles between the eyebrows, across the forehead, and at the corners of the eyes ("crow's feet").Dermatologists can quickly and safely inject botulinum toxin during an office visit to diminish these wrinkles and lines that create an angry or sad look and detract from a pleasant facial appearance.What is botulinum toxin?Botulinum toxin type A and botulinum...

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