The pain in the stomach may be caused by ovarian cysts, chronic prostatitis, chronic appendicitis and other diseases, patients need to follow the doctor’s instructions for medication, surgery and so on. 1. Ovarian cysts: generally small cysts, can be regularly observed, some cysts can disappear on their own, if necessary, the patient can follow the doctor’s instructions to use drospirenone ethinyl estradiol tablets, deoxyprogesterone ethinyl estradiol tablets and other short-acting contraceptives treatment. If the size of the cyst is large or fast-growing, it is necessary to choose to carry out ovarian cyst removal, ovariectomy on the affected side, total hysterectomy, adnexectomy and so on under the guidance of the doctor in a timely manner. 2. Chronic prostatitis: Usually patients can follow the doctor’s instructions to use levofloxacin, doxycycline and other antibacterial drugs, and can also be used in conjunction with the use of doxazosin, terazosin and other alpha-blockers or celecoxib and other non-steroidal anti-inflammatory drugs treatment. Some patients can also use quercetin, Pulsatilla and other plant drugs for treatment. 3. Chronic appendicitis: Usually patients can use antibiotics such as cefradine as prescribed by the doctor during the acute attack, but antibiotics are not recommended for recurrent right lower abdominal pain with unknown diagnosis. And patients should also undergo appendectomy as prescribed by the doctor if there is no contraindication. It is recommended that patients with symptoms of vague pain in the lower abdomen should consult a doctor in a timely manner to clarify the diagnosis and then reasonably carry out targeted treatment.