Itchy skin (pruritus) - Symptoms and causes - Mayo Clinic
网页2024年1月17日 · Itchy skin is an irritating sensation that makes you want to scratch. It's also called pruritus (proo-RIE-tus). Itchy skin is often caused by dry skin and is common in older adults, as skin tends to become drier with age.
Itchy skin (pruritus) - Diagnosis and treatment - Mayo Clinic
网页2024年1月17日 · Diagnosing the cause of itchy skin starts with a physical exam and questions about your medical history. If your health care provider thinks your itchy skin is the result of a medical condition, you might have tests, including: Blood test. A complete blood count can provide evidence of an internal condition causing your itch, such as anemia.
Atopic dermatitis (eczema) - Symptoms and causes - Mayo Clinic
网页2024年5月15日 · Learn about the causes, symptoms and treatments of this itchy rash that most often begins before age 5, is persistent, and has periods of clearing and relapse.
Dermatitis - Symptoms and causes - Mayo Clinic
网页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.
Types of dermatitis (dermatitis pictures) - Mayo Clinic
网页2023年12月19日 · Dermatitis also is called eczema. Symptoms include itchiness, scaly skin, a swollen rash, oozing blisters and dandruff-like scaling. The condition is not passed from person to person. Learn about the symptoms of common types of dermatitis.
Roseola - Symptoms & causes - Mayo Clinic
网页2022年6月29日 · Roseola is a common infection that usually affects children by age 2. It's caused by a virus that spreads from person to person. It can cause a high fever followed by a rash that doesn't itch or hurt. About a quarter of the people with roseola get a rash.
Henoch-Schonlein purpura - Symptoms & causes - Mayo Clinic
网页2021年9月21日 · Rash (purpura). Reddish-purple spots that look like bruises develop on the buttocks, legs and feet. The rash can also appear on the arms, face and trunk and may be worse in areas of pressure, such as the sock line and waistline.
Chronic hives - Symptoms and causes - Mayo Clinic
网页2023年4月25日 · Hives — also called urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts. Chronic hives are welts that last for more than six weeks and return often over months or years. Often, the cause of chronic hives isn't clear. The welts often start as itchy patches that turn into swollen welts that vary in size.
Anal itching - Symptoms and causes - Mayo Clinic
网页2024年9月18日 · Anal itching is a common condition. The itch in or around the anus is often intense and can be embarrassing and uncomfortable. Anal itching, also called pruritus ani (proo-RIE-tus A-nie), has several possible causes. They include infections, hemorrhoids and ongoing diarrhea.
Parvovirus infection - Symptoms & causes - Mayo Clinic
网页2022年4月19日 · A bright red rash on the cheeks is a distinctive sign of parvovirus infection. In most children, parvovirus infection is mild and needs little treatment. But in some adults, the infection can be serious. Parvovirus infection in some pregnant women can lead to serious health problems for the fetus.