Left suprapubic pressure pain, if there is a clear history of trauma may be a suprapubic branch fracture or local soft tissue injury, usually accompanied by local swelling and bruising and other manifestations. There may also be localized local osteomyelitis, usually with localized redness and swelling, generalized hyperthermia and other manifestations. Other causes are localized primary tumors of the pubic bone or pelvic lesions involving the pubic bone. In the case of men it may also be left sided varicocele and in women it may be left sided tubal adnexitis. The pelvis can be examined by routine X-ray to see if there are any obvious abnormalities in the bones, and if necessary, combined with pelvic CT and 3D reconstruction can be more accurate. If the fracture is not serious, it can be treated conservatively with bed rest. If it is a local primary skeletal tumor, it needs to be treated with surgical resection and postoperative adjuvant radiotherapy if necessary according to the pathological results.