Seborrheic alopecia can be determined if it is hereditary by looking at genome-wide scanning and localization, family history of hair loss, and the extent of hair loss. 1. Genome-wide scanning and localization: Observe the presence of susceptibility genes to help determine whether seborrheic alopecia is hereditary. 2. Family history of hair loss: 53.3%~63.9% of patients with hereditary seborrheic alopecia have a family history of hereditary seborrheic alopecia, and paternal inheritance is significantly higher than maternal inheritance. If a male relative suffers from seborrheic alopecia, the chances of his suffering from the disease are higher, and if he suffers from the disease, it is hereditary. If you have a family history of seborrheic alopecia, you can tell. 3. Degree of hair loss: Hereditary seborrheic alopecia patients have a larger area of hair loss than other types of alopecia, and the symptoms of hair loss are also more serious. The degree of hair loss can be judged according to the degree of hair loss. Patients suffering from this type of hair loss can be actively treated under the guidance of doctors to improve the symptoms of hair loss.