Seborrheic alopecia is a hair loss skin disease that occurs in young adults and used to be called premature baldness, male pattern baldness, androgenic baldness, diffuse baldness, generalized alopecia, and genetic alopecia. It is often accompanied by itchy scalp, oily or dandruff, and gradual hair loss. The disease is related to genetic factors, endocrine dysfunction, and some patients have a family history. The process of hair loss is slow and can be phased, sometimes light and sometimes heavy, and after several years it can lead to thinning of hair on the top of the head or at the temples and a shiny scalp. If not treated in time, a lysis enzyme produced by the growth and reproduction of bacteria at the root of the hair will dissolve the hair roots to the point of mutilation, making the hair roots loose and the hair follicles gradually atrophy and necrosis, eventually leading to seborrheic alopecia and even baldness. What are the causes of seborrheic alopecia? 1, seborrheic alopecia and genetics, age, environment and other factors also have a certain relationship. In addition, sleep disorders and mental factors are important causes of seborrheic alopecia. 2, seborrheic alopecia is directly related to excessive sebum secretion, one of the evidence is that human sebum secretion is related to the temperature, the higher the temperature the more sebum secretion. Therefore, seborrheic alopecia is particularly serious in the summer and autumn high temperature season, and the symptoms will be reduced in winter and spring. 3, due to the high level of human androgens to the skin secretion, and then caused by the hair follicle mouth hyperkeratosis, which affects the nutrition of the hair follicles, resulting in hair follicles gradually shrinkage, destruction caused by baldness. When the sebum secretion is excessive, some ingredients can have toxic effects on the hair follicles, and seborrheic alopecia can lead to hair poisoning, withering and shedding. What are the symptoms of seborrheic alopecia? 1.Hair density decreases from both sides of the forehead, hair is thin and sparse, and gradually extends to the top of the head, the frontal hairline recedes backward, the forehead becomes high, and the forehead hairline is M-shaped. 2.Hair starts to fall out from the top of the head. There is also simultaneous shedding of the top of the head and forehead. Hair loss progressive development, frontal and top of the head hair loss can be fused with each other, in serious cases, only the occipital and two temporal residual hair. The skin of the alopecia areata area is smooth, with fine fine animal hair and no skin atrophy. It may be accompanied by increased scalp oil secretion. Generally no self-perceived symptoms. 3, female pattern hair loss is generally lighter, mostly manifested as the top of the head hair gradually thinning, generally does not involve the temporal frontal part. The top hair loss is diffuse, like a “Christmas tree”. The progression of hair loss is generally slow and the degree varies from person to person, but total baldness at the top rarely occurs. How to prevent seborrheic alopecia? 1, do not face the computer for a long time, prolonged exposure to computer radiation will harm the scalp, is not conducive to hair health. 2, learn to eliminate stress, do not let yourself in a state of tension or low self-esteem, work should also pay attention to the combination of work and rest. 3, regular regular shampooing, keep the hair and scalp clean, if the hair is very oily, need to wash every day, the water can be appropriate salt. 4, do not smoke, do not drink, diet should be light, can eat more lean meat, eggs, fish to supplement nutrition. 5, do not eat greasy, can eat more vegetables, in addition to eat some appropriate nut food. Reminder: seborrheic alopecia can be controlled with drugs in the early stage, but the effect of treatment with drugs in the middle and late stage is not ideal, only through hair transplantation can achieve better results. In addition, it should be reminded that you must choose a regular hair transplant hospital when you have a hair transplant, so that the post-operative effect can be guaranteed.