A bald patch in the beard may be caused by pu baldness or post-inflammatory hair loss, etc. It can be improved by medication or surgery. 1. Patch baldness: the disease is a non-scarring, non-inflammatory hair loss disease, often manifested as partial loss of hair, eyebrows, beard and other parts of the hair, in the process of the development of the disease may appear beard bald piece of the situation. Patients can use strong topical glucocorticosteroids or minoxidil under doctor’s guidance, and take oral corticosteroids if necessary. 2. Hair loss after inflammation: beard area if previously suffered from folliculitis, may lead to impaired hair regeneration ability. The disease usually does not require special treatment, if the patient is self-conscious of the impact on aesthetics, can be improved through hair transplantation surgery. When the patient beard bald piece, it is recommended to go to the regular hospital in time for examination, under the guidance of a professional doctor for symptomatic treatment.