Is it normal for women to lose their hair in the fall?

Why does hair fall out at this time and is there a way to prevent it? According to experts in trichology, the science that studies the scalp, between September and December, hair loss triples. Just like trees losing their leaves or animals losing their fur, human hair also sheds with the arrival of autumn. “We don’t know why, it’s just part of our heritage as mammals,” explains Sara Ibarbia, dermatologist and trichologist from San Sebastian. Although unlike what happens in animals, in humans this process is more discreet and continuous.

According to Ibarbia, currently around 15% of our hair is in the renewal phase, which is why the number of hair loss in autumn is more alarming than that of the rest of the year. If we start by saying that human hair is made up of approximately 150,000 hairs and that the normal shedding throughout the year is 100 hairs per day, in autumn this figure triples, with a loss of 300 hairs per day. They are the ones who set off all the alarms.

“In autumn, the amount of hair that falls triples. If normally 100 hairs fall out per day, in autumn it falls 300.”

Sarah Ibarbia

Dermatologist and trichologist

“Autumn is recognized, when it comes to hair health, as one of the worst periods for hair, as it experiences more shedding than usual. This seasonal shedding is a process in which hair, which is in the telogen phase (mature hair loss), is renewed by hair in the growth phase (anagen). A typical normal alteration of the natural hair cycle, which at this time of year occurs with greater intensity, both in men and women”, explains Veronica Buldain, director of the Svenson hair center in San Sebastián. On the other hand, it is specified that with the arrival of cold weather, the hair clinic records a 95% increase in treatment consultations at this time of year, compared to those recorded during the month of June.

But why are falls only associated with women? According to the doctor at Sara Ibarbia Dermatology, the difference is that men do not notice hair loss as much due to the short length of their hair, compared to women, who are the ones who visit his office the most due to the hair loss on this hair. Appointment. “They see the accumulation of hair on the brush and they are afraid, but I calm them down by explaining to them that it is a seasonal process where the hair is in a renewal phase.”

Some attribute this drop to the change in temperature and change in habits from summer and others blame the change in sun exposure and the stress of returning to routine. On the other hand, “diet also influences hair renewal. For example, when someone is malnourished, their hair begins to fall out,” explains Ibarbia. This change in hair lasts three to four months and if this period is exceeded, according to the dermatologist, “the causes could be other, such as androgenic alopecia”, so it is better to consult a specialist.


Nutricosmetics are also a constant in pharmacies and parapharmacies which put them on sale at this time of year, but do they really work? Sara Ibarbia explains that these products do not prevent hair loss, but they are “a good ally” so that when the hair grows back, it comes out stronger and healthier. As for the most recommended vitamins, the dermatologist recommends type B vitamins, which contain zinc, iron and magnesium and which are found in foods such as whole grains, eggs, bananas, avocados and apples.

“As I always tell my patients, there is no anti-hair loss shampoo,” he explains in reference to the effectiveness of these products and emphasizes that there are many myths regarding the prevention of hair loss. hair loss, such as knowing if you don’t have any. By washing it, it falls less, and “quite the opposite, because not washing it could make it fall even more,” he concludes.

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