hiustenlähtötila

Hiustenlähtötila, known in English as alopecia, refers to a condition characterized by the loss of hair. This hair loss can occur in various patterns and affect different parts of the body, most commonly the scalp. There are numerous types of alopecia, each with distinct causes and presentations.

Androgenetic alopecia is the most common form, often referred to as male-pattern baldness or female-pattern baldness. It is influenced by genetics and hormones, typically resulting in a receding hairline or thinning hair on the crown in men, and diffuse thinning over the top of the scalp in women. Alopecia areata is an autoimmune condition where the immune system mistakenly attacks hair follicles, leading to patchy hair loss. This can manifest as small, round bald spots, but in some cases, it can progress to total scalp hair loss (alopecia totalis) or complete body hair loss (alopecia universalis).

Telogen effluvium is a temporary type of hair loss that usually occurs after a significant physical or emotional stressor, such as surgery, childbirth, or severe illness. It causes a generalized thinning of hair as more hairs than usual enter the resting (telogen) phase and fall out. Traction alopecia is caused by prolonged or excessive pulling on the hair, often due to tight hairstyles like braids, ponytails, or weaves. Scarring alopecias, such as lichen planopilaris or discoid lupus erythematosus, involve inflammation that destroys the hair follicle and replaces it with scar tissue, leading to permanent hair loss. Diagnosis of the specific type of hiustenlähtötila often involves a physical examination, medical history, and sometimes a scalp biopsy or blood tests to identify underlying causes.