The No. 1 Cause of Female Hair Loss Explained

Female pattern hair loss, also called androgenetic alopecia, is the most common cause of ongoing hair loss in women. It is influenced by genetics and hormone sensitivity, typically producing gradual thinning over the crown and a widening center part rather than completely bald patches.

Take a well-lit photo of your center part every four weeks from the same angle. Consistent images make it easier to identify progressive thinning and give a dermatologist a useful point of comparison.

Female pattern hair loss usually progresses slowly over months or years while the frontal hairline remains relatively intact. A dermatologist may examine follicle diameter with a dermatoscope; a mixture of fine and normal-width hairs can support the diagnosis.

Arrange a medical evaluation if shedding continues for more than three months, the part visibly widens, or scalp coverage declines. Sudden handfuls of hair, circular patches, redness, pain, or scaling require a more prompt assessment.

Low iron stores, inadequate protein, vitamin D deficiency, thyroid disorders, and restrictive dieting can contribute to diffuse shedding, even when female pattern hair loss is also present. Review the science-backed guide to hair loss and nutrient deficiencies for common nutritional factors and testing considerations.

Ask a clinician whether a complete blood count, ferritin, thyroid-stimulating hormone, or vitamin D test fits your symptoms. Avoid high-dose supplements until testing confirms a need, because excess vitamin A, selenium, and other nutrients may worsen hair loss.

Telogen effluvium can cause noticeable shedding after childbirth, fever, surgery, severe stress, rapid weight loss, or medication changes. The shedding often begins two to three months after the triggering event, so compare its timing with your health history.

Write down illnesses, procedures, diet changes, and new prescriptions from the previous 12 weeks. Do not stop prescribed medication without guidance; bring the timeline to a qualified healthcare professional instead.

Topical minoxidil is a commonly recommended treatment for female pattern hair loss, but strength, application frequency, pregnancy status, and scalp sensitivity affect suitability. Initial shedding may temporarily increase, and visible improvement generally requires several months of consistent use.

Confirm product compatibility with a dermatologist or pharmacist, especially during pregnancy, breastfeeding, or treatment for heart or blood-pressure conditions. Apply only the labeled amount to a dry scalp and wash your hands afterward.