Dry skin - Symptoms and causes - Mayo Clinic
2023年8月25日 · Dry skin makes the skin look and feel rough, itchy, flaky or scaly. The location where these dry patches form vary from person to person. It's a common condition that affects people of all ages. Dry skin, also known as xerosis or xeroderma, has many causes, including cold or dry weather, sun damage, harsh soaps, and overbathing.
Actinic keratosis - Symptoms & causes - Mayo Clinic
2022年12月17日 · Rough, dry or scaly patch of skin, usually less than 1 inch (2.5 centimeters) in diameter; Flat to slightly raised patch or bump on the top layer of skin; In some cases, a hard, wartlike surface; Color variations, including pink, red …
Seborrheic dermatitis - Symptoms and causes - Mayo Clinic
2024年7月19日 · Seborrheic (seb-o-REE-ik) dermatitis is a common skin condition that mainly affects your scalp. It causes scaly patches, inflamed skin and stubborn dandruff. It usually affects oily areas of the body, such as the face, sides of the nose, eyebrows, ears, eyelids and chest.
White patch on skin: A cause for concern? - Mayo Clinic
2023年10月3日 · Generally, a discolored patch on skin isn't cause for concern. Skin discoloration can be triggered by a number of causes, including: Atopic dermatitis (eczema). Sometimes a small area of skin becomes irritated, which results in a patch of skin that's lighter in pigment than is the skin around it (pityriasis alba).
Dry skin - Diagnosis and treatment - Mayo Clinic
2023年8月25日 · Dry skin often responds well to lifestyle measures, such as using moisturizers and avoiding long, hot showers and baths. If you have very dry skin, your doctor may recommend a moisturizing product formulated for your needs. If you have a serious skin disease, a doctor may want to treat it with a prescription cream or ointment.
Keratosis pilaris - Symptoms and causes - Mayo Clinic
2024年10月23日 · The keratin blocks the opening of hair follicles, causing patches of rough, bumpy skin. It's not clear why keratin builds up in people with keratosis pilaris. It might happen along with a genetic disease or skin conditions such as atopic dermatitis. Dry skin tends to make keratosis pilaris worse. Risk factors. Keratosis pilaris is very common.
Atopic dermatitis (eczema) - Symptoms and causes - Mayo Clinic
2024年5月15日 · Chronic itchy, scaly skin. A skin condition called neurodermatitis (lichen simplex chronicus) starts with a patch of itchy skin. You scratch the area, which provides only temporary relief. Scratching actually makes the skin itchier because it activates the nerve fibers in your skin. Over time, you may scratch out of habit.
Dermatitis - Symptoms and causes - Mayo Clinic
Dermatitis is a common condition that causes swelling and irritation of the skin. It has many causes and forms and often involves itchy, dry skin or a rash. Or it might cause the skin to blister, ooze, crust or flake. Three common types of this condition are atopic dermatitis, contact dermatitis and seborrheic dermatitis.
Seborrheic keratosis - Symptoms & causes - Mayo Clinic
2022年1月18日 · A seborrheic keratosis grows gradually. Signs and symptoms might include: A round or oval-shaped waxy or rough bump, typically on the face, chest, a shoulder or the back
Neurodermatitis - Symptoms and causes - Mayo Clinic
2024年9月18日 · Neurodermatitis is a skin condition that starts with an itchy patch of skin. Scratching makes it itch more. With more scratching, the skin becomes thick and leathery. You may develop several itchy spots, typically on the neck, wrists, forearms, legs or groin area.