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.
Patients who live in northern climates that get less sun actually have a higher prevalence of the condition. Conditions that can cause itchy skin, such as psoriasis, may be treated or even prevented with vitamin D, according to Consumer Reports. Psoriasis is a common problem that causes cells to accumulate on the surface of the skin quickly. Characteristics of this disease are a scaly appearance and itchy, dry patches.