Vague pain in the right lower back and anterior abdomen may be caused by appendicitis, right-sided urinary tract lesion, ovarian cyst, etc. 1. Appendicitis: Patients with this disease may have vague pain in the right lower back and anterior abdomen, accompanied by nausea, vomiting, fever and other symptoms. The appendix tends to be located closer to the posterior peritoneum in this case. 2. Right urinary system diseases: such as right kidney stone, right nephritis, right kidney tumor, right ureteral stone and other diseases, will lead to the right back waist and anterior vague pain. This is often due to pulling pain. 3. Right pelvic diseases: right pelvic diseases, such as ovarian cysts, adnexitis, etc., the patient may appear in the right posterior waist and anterior abdominal vague pain, some of the cysts with a large volume of people will have lower abdominal discomfort, swelling, there may also be severe abdominal pain, nausea and other serious symptoms. It is recommended that patients go to the hospital in a timely manner, under the diagnosis of the doctor, according to the patient’s specific condition, to take targeted treatment, life has a balanced diet, to maintain a regular work and rest.