Bilateral ovarian microcysts are small cystic echoes found in both ovaries during an ultrasound of the uterine adnexa. Bilateral ovarian cysts are considered to be ovarian cysts, polycystic ovary syndrome and other possibilities. 1. Ovarian cysts: Ovarian cysts are divided into physiologic ovarian cysts and pathologic ovarian cysts. (1) Physiologic ovarian cysts: Physiologic ovarian cysts are generally considered to be retained follicles, which will gradually disappear with the menstrual cycle. In addition, after pregnancy, due to estrogen-progestin stimulation, it may also lead to luteal cysts manifesting as small cyst-like changes in the ovaries bilaterally. (2) Pathological ovarian cysts: generally seen in chocolate cysts, benign teratomas, ovarian malignant tumors and so on. (2) Polycystic ovary syndrome: due to endocrine diseases caused by the ovaries appear small cystic echoes, and small cystic echoes usually more than 12 or more. Bilateral ovarian cystic echoes, it is recommended to consult a doctor in a timely manner, after the doctor’s interview with other related items, to determine the cause of the disease, and then follow the doctor’s instructions for the cause of the treatment.