What should you know about hair loss in summer?

Swimming, salt water, frequent washing, sun exposure, and hot styling can dry the hair shaft and make breakage more visible. Sweat and occlusive headwear may irritate an already sensitive scalp, while shared pool or household items can matter if there is an infectious scalp condition. A seasonal observation can also overlap with female or male pattern hair loss, alopecia areata, traction alopecia, scalp ringworm, or telogen effluvium. Shedding from telogen effluvium may become noticeable after the event that triggered it, so timing alone does not prove that weather is the cause.

Rinse chlorine or salt from the hair, use conditioner on the lengths, and detangle gently with a wide-tooth comb. Dry by blotting rather than vigorous rubbing, and limit high heat and tight styles when hair feels fragile. Keep hats and helmets clean and dry, and avoid sharing brushes or towels. Photograph the part and hairline if you see ongoing change. A clinician can examine the scalp, distinguish breakage from shedding, and decide whether treatment is needed; finasteride treatment should only be considered with individual medical advice.

Book a review if loss continues after your summer routine changes, becomes diffuse or patchy, or is accompanied by scale, redness, pain, crusting, or broken hairs. Seek prompt care for rapidly expanding bare areas, pus, fever, or loss of eyebrows and eyelashes. These signs point to a scalp or hair disorder that needs more than cosmetic protection.

Am I seeing hair-shaft breakage or shedding from the follicle? Could my scalp findings fit infection, traction, pattern loss, or telogen effluvium? Did any illness, medication, diet, or stressor precede the change? What routine is safe for my scalp?