Does summer heat increase hair loss?

Dermatologists warn that high temperatures and humidity during the summer may lead to a temporary increase in hair loss, as a result of the scalp and hair being exposed to environmental factors such as sunlight, sweating, humidity, sea water and chlorine. They stress that this condition is often seasonal and does not necessarily indicate baldness.

Dermatologists explained that hair loss occurs when the natural balance of the hair growth cycle is disturbed, noting that its causes may include aging, hormonal changes, genetic factors, lack of vitamins and minerals, some diseases and medications, in addition to psychological stress.

Experts pointed out that hot weather may exacerbate hair loss, as the accumulation of sweat and humidity can lead to irritation of the scalp and blockage of hair follicles, while chlorine and sea water cause increased hair dryness and breakage, which makes it more susceptible to breakage.

They pointed out that seasonal hair loss usually begins in late summer and may continue for several weeks or months before the hair returns to growing normally, and it differs from pathological types of hair loss that lead to the appearance of clear gaps or permanent thinning.

Dermatologists advise to maintain healthy hair during the summer by making sure to drink sufficient amounts of water, follow a balanced diet, use gentle shampoo and conditioner free of irritants, and avoid excessive use of heat styling tools.

They also recommended wearing a hat when exposed to direct sunlight, moisturizing the hair before and after swimming to limit the absorption of chlorine or salts, and using moisturizing masks containing shea butter or coconut oil.

Experts confirmed that the continuation of hair loss for more than several months, or the appearance of itching and inflammation in the scalp, or the observation of clear gaps or a change in the hairline, requires seeing a dermatologist to determine the cause and develop the appropriate treatment.