In clinical practice, the lower part of the abdomen is generally referred to as the lower abdomen, which anatomically usually refers to the portion between the navel and the pubic bone, bordered on both sides by the portion between the hips. The lower abdominal region includes many important organs, such as the intestines, ureters, bladder, pelvis, uterine adnexa, prostate and so on. Therefore, many clinical diseases will manifest as lower abdominal discomfort, including digestive system, urinary system, gynecological system diseases and so on. Of course, in addition to lower abdominal pain, soreness and swelling, these diseases may also be accompanied by blood in the urine, blood in the stool, abnormal vaginal discharge and other symptoms. When patients have lower abdominal discomfort, they should go to the hospital in time for diagnosis and treatment, and after completing ultrasound, CT and other relevant examinations under the guidance of the doctor, then carry out symptomatic treatment for the cause of the disease.