Pain below the caudal vertebrae and above the anus, also known as sacrococcygeal pain. It is common in the following two conditions: 1. Prolonged sitting causes inflammation of the sacrococcygeal fascia or inflammation of the periosteum, which in turn causes pain. It is mainly manifested as local tingling and swelling pain, which can induce obvious pain when pressed or touched by hand, but when tapped by hand, the pain will be reduced instead, or feel comfortable instead. It is mainly treated with medication, which can be topically applied with Furtalin ointment, together with oral non-steroidal anti-inflammatory and analgesic drugs, such as Xilabao capsules or Nimesulide dispersible tablets. At the same time, remove the cause of the disease, avoid prolonged sitting, if you have to sit on a stool, you can put a soft cushion on it. 2, sacrococcygeal pain caused by trauma. It is necessary to improve the X-ray examination of sacrococcygeal spine to rule out the possibility of fracture, if there is a fracture, conservative treatment can also be used.