Repeated baldness may be caused by immune, mental, infection and other factors. 1. Immunity factors: If patients with baldness are suffering from hyperthyroidism, vitiligo and other autoimmune-related diseases, it may lead to disorders in the body’s immune mechanism, which will induce baldness again and again. 2. Mental factors: For patients who have already suffered from pemphigus vulgaris, daily long-term in poor mental conditions, such as tension, depression and anxiety, may trigger pemphigus vulgaris recurrence. 3. Infectious factors: some patients with baldness may be infected with herpes zoster, syphilis and other diseases, if the above diseases are not cured, it may lead to baldness that cannot be relieved, and then it will appear again and again. There are many reasons for recurrent baldness, so it is recommended that patients go to regular hospitals to consult doctors and learn about related matters.