Pain at the base of the thighs and against the pubic area can have many causes. First, it is important to clarify whether there has been recent trauma and straining caused by strenuous activity. Clarify the presence of inflammation in the perineum, itching, and a mass in the lymphatic inguinal area to clarify the cause of the condition. If it is simple perineal pain, it is mostly considered to be sciatica, or prolonged exertion, fatigue, improper alcohol consumption, resulting in chronic injury. It is recommended to go to the hospital to improve the X-ray examination, to exclude orthopedic diseases, if you need further treatment, you can go to the local hospital for consultation.