What should you know about seasonal hair loss?

Hair growth moves through repeating phases, so more hairs can enter the shedding phase after a delayed trigger such as illness, emotional strain, major weight change, nutritional deficiency, or a change in hormones. A seasonal pattern may be noticed at the same time each year, but timing alone cannot identify the cause. Telogen effluvium is one possible explanation when diffuse shedding follows a trigger.

A receding hairline or widening part can fit pattern hair loss, while smooth round patches may fit alopecia areata. Scale, broken hairs, or an inflamed scalp can point toward scalp ringworm. Tight styles can contribute to traction alopecia. These patterns need different evaluations.

Take consistent photos of the hairline, part, and crown under similar lighting, and note when shedding began and what happened in the preceding months. Handle hair gently, loosen tight styles, limit repeated high heat or chemical processing, and eat regular balanced meals. Do not start prescription treatment or high-dose supplements without discussing the reason and possible interactions with a clinician.

A clinician may examine the scalp and hair shafts and ask about illness, medicines, periods, thyroid symptoms, diet, and family pattern. The plan depends on whether the issue is shedding, breakage, or reduced density.

Arrange assessment when shedding is sudden, continuing, or accompanied by patchy loss, scalp pain, scaling, sores, broken hairs, or eyebrow loss. Seek prompt care for a rapidly inflamed scalp or signs of infection. Earlier review helps distinguish temporary shedding from pattern loss or a condition that needs targeted treatment.

Ask whether your pattern suggests telogen effluvium, pattern hair loss, alopecia areata, infection, or traction; whether tests are appropriate; and which treatments are safe with your medicines and health history.