Female pattern hair loss in postmenopausal women is the most common cause of hair thinning in women over 50, but it has features that distinguish it from pre-menopausal pattern hair loss. The drop in estrogen at menopause unmasks a more androgen-dominant scalp environment, even though circulating androgen levels themselves don't rise. The result is often acceleration of previously subtle thinning, with patterns more closely resembling male-type pattern loss including frontal recession in some cases.

Treatment options that work well pre-menopause sometimes lose effectiveness after. Topical minoxidil remains useful but with smaller effect sizes than in younger women. Spironolactone retains effectiveness if androgen receptor blockade is the predominant need. The role of HRT (hormone replacement therapy) is nuanced, it can stabilise hair loss for some women but is rarely sufficient alone. Many postmenopausal women benefit from combination approaches including low-dose oral minoxidil, which often produces better response than topical alone in this population.

Diagnostic considerations matter especially in this age group. Thyroid disease prevalence rises with age and should be excluded. Iron deficiency in postmenopausal women, while less common than in pre-menopausal women, still occurs. Hair manifestations of frontal fibrosing alopecia overlap with female pattern hair loss in this demographic and require specific recognition because treatment differs substantially. A trichoscopy-equipped dermatology consultation is more valuable in older women than in younger ones precisely because the differential is broader.