Hair loss in summer is particularly strong, may be due to seasonal hair loss caused by, if there are certain diseases or taking certain drugs during the summer, can also cause hair loss. If the patient’s hair loss is more serious, or accompanied by other uncomfortable symptoms, you should promptly seek medical examination to clarify the cause of treatment, common causes are as follows: 1, physiological alopecia: may be due to seasonal alopecia, due to the hot summer temperatures, human oil secretion and sweat secretion is more vigorous, which may lead to an increase in the number of hair loss in summer, the hair can grow out again in winter, for physiological alopecia, generally without 2, pathological hair loss: bad habits and diseases and other factors may also trigger or aggravate hair loss, such as tension, anxiety, lack of sleep, mental and emotional shock, excessive weight loss, dieting resulting in nutritional imbalance, anemia, or endocrine diseases such as hyperthyroidism, hypothyroidism, etc., need to remove the triggering factors, or take the appropriate treatment according to the cause. If long-term use of certain drugs, such as anti-epileptic drugs, antidepressants, etc. can also cause hair loss, usually more than just summer hair loss, no seasonal restrictions, need to deal with the cause of the disease.