A white spot at the tailbone below the buttocks may be vitiligo, lichen planus, eczema, etc., need to be the cause of the line of drugs, surgical treatment, physical therapy. 1. for vitiligo caused by, need to comply with the doctor’s prescription external mometasone furoate and other glucocorticoids, tacrolimus ointment and other calcium-modulated neural phosphatase inhibitors, on the generalized, progress, stress and autoimmune diseases associated with oral prednisone and other glucocorticosteroids; feasible epidermal transplantation surgery will be the autotransplantation of tissues or melanocytes to the depigmented area. 2. For those caused by lichen planus, you can follow the doctor’s instructions to use miconazole ointment and other antifungal ointment, and if necessary, you need to take oral itraconazole and other antifungal drugs for joint treatment. 3. For eczema caused by, can follow the doctor’s instructions external tacrolimus ointment and other calcium-modulated neural phosphatase inhibitors, need to take levocetirizine and other antihistamines; can be through the ultraviolet irradiation to promote the recovery of skin lesions. It is recommended to go to the hospital in time to see a white spot at the tailbone below the buttocks, to clarify the cause of the disease, and to standardize the treatment under the guidance of the doctor.