Pelvic effusion of 2.0 cm is not serious. If this condition is accompanied by pain in the lower abdomen, and this pain is aggravated during menstruation, sex or after exertion, and is accompanied by increased vaginal discharge, it is a sign of chronic pelvic inflammatory disease. Patients with chronic pelvic inflammatory disease may feel fatigued, depressed and have pelvic effusion, which is mainly caused by massive exudation of inflammation. It is advisable to take active anti-inflammatory treatment, such as oral Chinese medicine, such as vajra capsules for chronic pelvic inflammatory disease, and it is also advisable to strengthen nutrition, do physical therapy of the lower abdomen, and it is advisable to inject placental tissue fluid intramuscularly to reduce the possibility of pelvic adhesions. In addition, do not have intercourse during the treatment period, and do not eat spicy and sour stimulating food in the diet.