Cystic echoes in the right adnexal region are considered to be related to physiological ovarian cysts such as corpus luteum cysts, follicular cysts and pelvic inflammatory diseases such as tubal effusion, pelvic inflammatory encapsulated effusion or ovarian tumors. 1. Physiological ovarian cysts: due to the cyclic growth and development of follicles and atresia in the ovary, physiological cysts such as corpus luteum cysts and follicular cysts can be seen in different periods of menstruation, which usually disappear on their own after menstruation is cleared. 2.Diseases: (1) Pelvic inflammatory disease: if the patient is combined with pelvic inflammatory disease, it may cause adhesion of the umbilical end of the fallopian tube, which may lead to the mucus secreted by the mucous membrane can not be discharged in time and form tubal effusion; if the patient is combined with severe pelvic inflammatory disease, with the progression of the disease there is a possibility of localized encapsulated effusion formation. (3) Ovarian tumor: when patients have benign lesions such as ovarian chocolate cysts and teratomas, the ultrasound shows mud-like echogenicity or localized strong echogenicity of star pattern, and the patients may have progressive worsening of dysmenorrhea or infertility and other discomforts. For patients with cystic echoes in the right adnexal region, it is recommended to improve the tumor markers, pelvic MRI and other related examinations, to clarify the cause of the disease and then actively treated under the guidance of the doctor.