Why the temples go first
In male-pattern hair loss, the follicles in the corners where the front hairline meets the temples are usually the first to shrink. Norwood's scale starts there: stage II is triangular, usually symmetrical recession at the temples while the middle of the hairline moves back much less, and stage III is deep recession with the corners bare or only thinly covered. Because the middle tends to hold for longer, the early outline is the familiar M. The American Academy of Dermatology names a receding hairline, or a bald spot on top of the head, as the first sign many men notice.
Based on: Norwood 1975; American Academy of Dermatology
A temple notch on its own is normal
Hairlines change shape from childhood to adulthood, and the corners are where the change shows most. In a study of 456 healthy Japanese adults, a hairless region at the temples was found in about 83 percent of men and 48 percent of women, and a notch shaped like an upside-down triangle was the most common temple outline in men. Many adults therefore have corners that look receded next to their childhood photos without having pattern hair loss. What matters is whether the notch has settled. A corner that deepened a little in the late teens or twenties, evenly on both sides, and has looked the same for years is usually maturation.
Based on: Kashiyama et al. 2021; Rassman et al. 2013
Signs a temple is still moving
Progression has a few tell-tale features. The corners keep deepening across photos taken months apart in the same conditions. The hairs in the corner become finer, shorter and lighter than the hairs just behind them, because shrinking follicles produce thinner hair before they stop. Both sides usually move, even if one leads. The crown may start to show more scalp at the same time, and close relatives with pattern hair loss make it more likely, since the tendency is inherited. The American Academy of Dermatology notes that these signs can be subtle enough to go unnoticed for months or years, which is why dated photos beat memory.
Based on: American Academy of Dermatology
Receding temples in women
Women with female-pattern hair loss usually keep their front hairline and thin across the top instead, though the American Academy of Dermatology notes that hair near the temples may recede a little, and that a woman's hairline starts to recede slightly with age. Two other causes are worth knowing. Tight ponytails, buns, braids, extensions or head coverings that pull at the hairline can cause traction alopecia, which often shows first as broken hairs and recession at the front and temples, and can become permanent if the pulling continues. Frontal fibrosing alopecia recedes as a band along the front and sides, often with eyebrow loss, mostly after menopause.
Based on: American Academy of Dermatology
How to keep an eye on your temples
Take a front photo about once a month with your hair dry and pushed back, a headband if needed, the camera at eye level and the same light each time. Keep your hair length similar between photos, since a fresh short cut exposes corners that longer hair covers. Look at each corner separately, compare it with the first photo of the series rather than last month's, and judge the trend over three to six months. The free GlowUp Face check measures how far each temple corner sits behind the middle of the hairline, left and right, in your own facial thirds, and its private tracker charts temple recession month by month.
Based on: Canfield 1996
When to see a dermatologist
Slow, even recession at the temples is common and not urgent; a dermatologist can confirm the cause and explain the options whenever you are ready, and results tend to be better when treatment starts early. Book sooner if the corners recede quickly, if the recession forms a band with thinning eyebrows, if there are patches, broken hairs or a sore, itchy or scaly scalp, or if the change started after a new medicine or an illness. In those cases the cause may not be pattern hair loss at all, and some of those causes do best when they are treated early.
Based on: American Academy of Dermatology
