Hair Loss in Women: Causes, Symptoms and Treatment Options

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Hair loss in women, a concern affecting approximately half of all women at some point in their lives, can stem from various factors including genetics, hormonal changes, and underlying medical conditions.

While losing 50 to 100 hairs daily is considered normal, excessive shedding or noticeable thinning should prompt investigation. Common signs include increased hair accumulation on brushes, pillows, and in drains, as well as a widening part or reduced ponytail thickness.

The most prevalent cause of hair loss in women is androgenetic alopecia, a hereditary condition characterized by gradual follicle shrinkage and shorter growth cycles. This often begins in the 50s or 60s but can manifest earlier. Unlike men, women typically experience thinning on the crown or frontal scalp rather than a receding hairline.

Other types of hair loss include telogen effluvium, triggered by physical or emotional stress, illness, vitamin deficiencies, or hormonal shifts like pregnancy. Anagen effluvium results from follicle-damaging medications such as chemotherapy or radiation, with hair regrowth usually occurring post-treatment.

Certain medical conditions can also contribute to hair loss, including thyroid disorders, anemia, polycystic ovary syndrome (PCOS), diabetes, and scalp infections. Autoimmune diseases like alopecia areata, where the immune system attacks hair follicles, and scarring alopecias, which cause permanent bald patches, are additional factors.

Lifestyle factors such as rapid weight loss, iron or protein deficiencies, and excessive vitamin A intake or vitamin D deficiency may also play a role. Hormonal changes during menopause, pregnancy, and aging can further impact hair growth.

Hairstyles that pull on the hair for extended periods, such as tight braids or ponytails, can lead to traction alopecia, a reversible condition if addressed early. Harsh chemicals and high heat styling can also weaken hair.

Diagnosis involves clinical examination, blood tests to check for anemia or thyroid issues, a pull test, scalp examination, and sometimes a biopsy.

Treatment options vary depending on the cause and include topical minoxidil to prolong the growth phase, spironolactone to block androgen hormones, nutritional supplements for deficiencies, hair transplantation for advanced cases, at-home laser devices for stimulation, and platelet-rich plasma (PRP) therapy with micro-needling.

Early intervention is generally recommended to improve the chances of restoring hair density.