Itching is a symptom we have all experienced. Nevertheless, itching can be difficult to describe to others. While itching symptoms vary, it typically leads to a peculiarly uncomfortable skin sensation. It may feel as if something is crawling on (or in) your skin. Itching can be diffuse (generalized all over the body) or localized -- all over or confined to a specific spot -- and there are many causes of diffuse and localized itching. Itching symptoms can be associated with
Itching may be most noticeable at night, during the day, or both. When there are itching symptoms, there can be a leathery or scaly texture to the skin depending on the cause.
Itching can be caused by toxins on the skin (contact dermatitis, such as from poison ivy or grass oils), medications, liver disease, kidney disease, insect bites, scabies, parasites (bedbugs, pinworms and others), hives (urticarial), rare forms of skin cancer (mycosis fungoides and T cell lymphomas), infections (including chickenpox and fungal infections such as athlete's foot and jock itch), irritation from clothing, eczema, dermatitis herpetiformis, hemorrhoids, and many other conditions, or it can remain unexplained.
Perhaps the best definition of itching is by the response it evokes -- it is a feeling that makes you want to scratch. Medically, itching is known as pruritus. Something that is itchy is said to be pruritic.Summary of Common Itching Symptoms by MedicineNet Staff