Hair follicle growth occurs in cycles. Each cycle consists of a long growing phase (anagen), a short transitional phase (catagen) and a short resting phase (telogen). At the end of the resting phase, the hair falls out (exogen) and a new hair starts growing in the follicle, beginning the cycle again. Normally, about 40 (0–78 in men) hairs reach the end of their resting phase each day and fall out. When more than 100 hairs fall out per day, clinical hair loss (telogen effluvium) may occur. A disruption of the growing phase causes abnormal loss of anagen hairs (anagen effluvium).
symptom of Hashimoto's thyroiditis
symptom of Graves' disease
symptom of Non-Hodgkin lymphoma
symptom of T-cell lymphoma
symptom of Type 1 diabetes
symptom of Hypothyroidism
symptom of Autoimmune disease
symptom of Herpes labialis