Have you ever noticed that you seem to lose more hair in the shower or on your brush during certain months? You’re not imagining it. Many people experience seasonal hair shedding, a normal change in the hair growth cycle that most commonly occurs during late summer and early fall. While it can be alarming to see more strands coming out, this temporary increase in shedding is often a natural biological process rather than a sign of permanent hair loss.
Your hair constantly cycles through phases of growth, rest, and shedding. During seasonal changes, a larger number of hair follicles may enter the telogen (resting) phase at the same time. About two to three months later, those hairs naturally shed to make room for new growth. Researchers believe this seasonal pattern may be influenced by changes in daylight exposure, temperature, and other environmental factors that affect the hair growth cycle. People with longer hair often notice seasonal shedding more because each strand is simply easier to see, and tends to coil together, making it look worse than it really is.
In most cases, seasonal hair shedding resolves on its own within a few months and the hair gradually regrows. However, if your shedding is severe, lasts longer than three to six months, or is accompanied by noticeable thinning, widening of the part, bald patches, scalp symptoms, or other changes, it’s important to have a thorough evaluation. Seasonal shedding can sometimes uncover an underlying condition such as androgenetic alopecia, nutritional deficiencies, thyroid disease, hormonal changes, or another medical issue that requires treatment. Identifying the true cause is the first step toward protecting your hair and maintaining long-term hair health.