Age spots (liver spots) - Symptoms & causes - Mayo Clinic
2022年2月11日 · 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.
Seborrheic keratosis - Symptoms & causes - Mayo Clinic
2022年1月18日 · Seborrheic keratoses are very common on the back. They appear as waxy light tan, brown or black growths that look as if they were dripped onto the skin by a candle. Some can grow large, more than 1 inch (2.5 centimeters) across.
Age spots (liver spots) - Diagnosis & treatment - Mayo Clinic
2022年2月11日 · What suspicious changes in my skin should I look for? If the spots are age spots, what can I do to improve the appearance of my skin? Do treatments make them go away completely, or do they just lighten the age spots? Could these spots turn into skin cancer?
Actinic keratosis - Symptoms & causes - Mayo Clinic
2022年12月17日 · Actinic keratoses are scaly spots or patches on the top layer of skin. With time they may become hard with a wartlike surface. Also known as a solar keratosis, an actinic keratosis grows slowly and usually first appears in people over 40.
Symptoms and causes - Mayo Clinic
The affected skin might heal with temporary changes in color (post inflammatory hyperpigmentation), particularly on brown or Black skin. Nail psoriasis. Psoriasis can affect fingernails and toenails, causing pitting, abnormal nail growth and discoloration.
Melanoma pictures to help identify skin cancer - Mayo Clinic
2023年12月16日 · A spot with more than one color or uneven color may indicate cancer. Colors can include shades of tan, brown or black or areas of white, red or blue. Melanomas can look different on Black and brown skin than they do on white skin.
Mayo Clinic Q and A: “Aging spots” typically don’t require treatment
2015年10月31日 · DEAR MAYO CLINIC: I’ve developed waxy, brown spots on my skin. Are they potentially dangerous? What’s the best way to get rid of them? ANSWER: What you describe may be seborrheic keratoses — commonly referred to as aging spots. Seborrheic keratoses are some of the most common, noncancerous skin growths in older adults.
Neurofibromatosis type 1 - Symptoms and causes - Mayo Clinic
Neurofibromatosis type 1 (NF1) is a genetic condition that causes changes in skin pigment and tumors on nerve tissue. Skin changes include flat, light brown spots and freckles in the armpits and groin.
Skin cancer - Symptoms and causes - Mayo Clinic
2022年12月6日 · Having skin lesions known as actinic keratoses can increase your risk of developing skin cancer. These precancerous skin growths typically appear as rough, scaly patches that range in color from brown to dark pink. They're most common on the face, head and hands of fair-skinned people whose skin has been sun damaged. A family history of skin ...
Mayo Clinic Q and A: What are seborrheic keratoses?
2019年10月8日 · DEAR MAYO CLINIC: I have brown spots over the top half of my body, which my doctor says are seborrheic keratoses and are harmless. What causes them, and is there a way to prevent more from appearing? ANSWER: Seborrheic keratoses are a common skin issue, particularly in older adults.