
Vitiligo - Symptoms & causes - Mayo Clinic
Feb 1, 2024 · 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 …
Acanthosis nigricans - Symptoms & causes - Mayo Clinic
Apr 30, 2025 · Acanthosis nigricans is a skin condition that causes a dark discoloration in body folds and creases. It typically affects the armpits, groin and neck.
Tinea versicolor - Symptoms & causes - Mayo Clinic
Aug 11, 2025 · Tinea versicolor (TIN-ee-uh vur-si-KUL-ur) is a common skin infection caused by a fungus. The fungus causes patchy changes in skin color. The affected skin may look lighter or darker …
Livedo reticularis: When is it a concern? - Mayo Clinic
Mar 8, 2024 · Livedo reticularis is thought to be due to spasms of the blood vessels or a problem of the blood flow near the skin surface. It makes the skin look mottled in sort of a net pattern with clear …
Discolored semen: What does it mean? - Mayo Clinic
Aug 20, 2025 · Red semen. Eating a lot of red-colored foods, such as beets, could cause red semen. Sometimes, red or red-streaked semen could mean blood is present. Possible causes of blood in …
Lichen sclerosus - Symptoms and causes - Mayo Clinic
Overview Lichen sclerosus (LIE-kun skluh-ROW-sus) is a condition that causes patchy, discolored, thin skin. It usually affects the genital and anal areas. Anyone can get lichen sclerosus but …
Nail fungus - Symptoms and causes - Mayo Clinic
May 15, 2024 · Learn about symptoms, treatment and prevention of this common infection among older adults that causes nails to discolor and crumble.
White patch on skin: A cause for concern? - Mayo Clinic
Oct 3, 2023 · Generally, a discolored patch on skin isn't cause for concern. Skin discoloration can be triggered by a number of causes, including: Consult a dermatologist for an evaluation if the …
Types of dermatitis (dermatitis pictures) - Mayo Clinic
Dec 19, 2023 · Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Sun damage - Mayo Clinic
Jun 24, 2023 · See photos of common skin conditions that are caused by too much time in the sun.