The causes of lower abdominal pressure pain are urinary system diseases, intestinal diseases, etc. Women may also be gynecological diseases, need to consult a doctor in time to identify the causes. 1. urinary system diseases: such as urinary tract infection, cystitis, ureteral stones, patients can appear in the lower abdomen pressure pain, there will be frequent urination, urinary urgency, urinary pain and other symptoms. 2. Intestinal diseases: such as colitis, acute gastritis, appendicitis, etc., there will be lower abdominal pressure pain, abdominal pain, diarrhea and other symptoms. 3. Gynecological diseases: such as pelvic inflammatory disease, endometritis, etc., will cause lower abdominal pressure pain, lower abdominal pain is persistent pain, as well as vaginal bleeding, vaginal discharge abnormal symptoms. Pressing pain in the lower abdomen may also be caused by other diseases, you should consult a doctor to find out the cause of the disease and follow the doctor’s instructions for treatment.