Pronunciation: inâ²di-kÄâ²shÅ­n. Definition: The basis for initiation of a treatment for a disease or of a diagnostic test; may be furnished by a knowledge of the cause (causal indication), by the symptoms present (symptomatic indication), or by the nature of the disease (specific indication).
Anyhow, here is a list of some of the causes of itchy skin with no rash: 1  Dry skin. 2  Dry skin can be caused by cold weather and lack of moisturizing. 3  Scabies infection. 4  Poor blood circulation. 5  Iron deficiency. 6  Pregnancy. 7  Obstetric Cholestasis in pregnant women.
Causes. Possible causes of itchy skin include: 1  Dry skin. 2  If you don't see a crop of bright, red bumps or some other dramatic change in the itchy area, dry skin (xerosis) is a likely cause. Skin conditions and rashes. 2  Many skin conditions itch, including eczema (dermatitis), psoriasis, scabies, lice, chickenpox and hives. 3  The itching usually affects specific areas and is accompanied by other signs, such as red, irritated skin or bumps and blisters. 4  Internal diseases.