Every hair is a sense of security.

To prevent shedding, you must know the four main reasons for boyfriend's hair loss. Every hair is a sense of security.

First, the age factor.

Male seborrheic alopecia must occur after puberty. Once you reach this age, you should start to prevent male seborrheic alopecia in time.

Second, the role of androgen

Androgen is the main cause of seborrheic alopecia in men. According to the research on the causes of male seborrheic alopecia, it is found that male alopecia will not occur if there are defects in male hormone synthesis and active genes.

Third, heredity.

Seborrheic alopecia depends not only on parents, but also on the families of both parents, such as uncles. For example, seborrheic alopecia, female onset, the symptoms are lighter than men, so sometimes the symptoms may not be obvious when the mother comes on, but it will be more obvious on the uncle's side.

Fourth, mental stress.

Neuropathic alopecia, including alopecia areata, alopecia totalis and alopecia universalis, can occur in any part of the scalp and last for months and days. Under the action of mental stress, the human hair muscles contract and the hair stands upright, and the capillaries that transport nutrients to hair follicles contract, leading to local blood circulation disorder, which leads to hair malnutrition.