There may be many reasons why girls always lose their hair. Here are some possible reasons:

1. Physiological factors: The growth cycle of hair includes growth period, degeneration period and rest period. In the retrogression period, hair will naturally fall off, which is a normal phenomenon. Due to the change of postpartum hormone level, a lot of hair may fall off, but after postpartum recovery, hair loss will return to normal. In addition, bad living and eating habits, such as excessive stress, dieting and excessive hair dyeing, may lead to endocrine disorders, hair malnutrition and hair follicle damage, thus increasing the number and frequency of hair loss.

2. Pathological factors: seborrheic dermatitis, alopecia areata, scalp psoriasis and other diseases may also lead to girls' frequent hair loss. These diseases will affect the normal growth of hair, resulting in a significant reduction in hair volume, which requires timely treatment to alleviate symptoms.

If girls find that hair loss has increased significantly, it is recommended to seek medical advice in time so as to diagnose the cause and get appropriate treatment. At the same time, maintaining good living habits and eating habits is also conducive to the healthy growth of hair.