Jun 2, 2022 · The main sign of acanthosis nigricans is dark, thick, velvety skin in body folds and creases. It often appears in the armpits, groin and back of the neck. It develops slowly. The affected skin might be itchy, have an odor and develop skin tags.

May 13, 2022 · Dark skin on the neck is a common condition that is characterized by a brown or black band of skin or irregular hyperpigmented patches. While a dark neck is usually not a cause for concern, it can also be a symptom of a serious underlying health condition.

Feb 11, 2021 · Acanthosis nigricans is a treatable skin condition that causes dark patches on your body. It is often (though not always) a sign of prediabetes or diabetes. Talk to your healthcare provider to find out if you have an underlying condition causing AN.

Mar 14, 2025 · Causes of rash on your neck may include allergies, eczema, infections, and heat rash. Home remedies and medications can help clear a rash.

Jan 10, 2025 · In people with darker skin tones, dark neck may appear leathery. Also known as “black neck,” this hyperpigmentation on the neck is typically not a cause for concern and is not contagious. Treatment can include skin creams or laser therapy by a dermatologist.

Mar 5, 2025 · A neck rash is an inflammatory reaction that can occur on the back, front, and sides of the neck. The way the rash looks and feels depends on what’s causing it. Many things can cause a neck rash to develop, such as allergies or skin conditions.

Mar 3, 2022 · Acanthosis nigricans is a skin condition characterised by a velvety papillomatous overgrowth of the epidermis. Darkening and thickening (hyperkeratosis) of the skin occurs mainly in the flexural areas, particularly the axillae, groins, inframammary regions, and the neck.

Feb 7, 2024 · Acanthosis nigricans is a fairly common skin pigmentation disorder. Dark patches of skin with a thick, velvety texture characterize the condition. The affected areas of your skin may also itch...

Acanthosis nigricans is the name for dry, dark patches of skin that usually appear in the armpits, neck or groin. It could be a sign of an underlying condition, so it needs to be checked by a GP.

Acanthosis nigricans is characterized by darkening (hyperpigmentation) and thickening (hyperkeratosis) of the skin, occurring mainly in the folds of the skin in the armpit (axilla), groin and back of the neck. The skin patches will be dry and …