Checking for follicular cysts can be done with an abdominal ultrasound, hysteroscopy, CT, and MRI. Follicular cysts are cysts that form when a normally developing follicle becomes too large because it does not rupture and fluid builds up inside the follicle. Its examination to confirm the diagnosis can be done by doing an abdominal ultrasound, which can be combined with laparoscopy, CT, MRI and other tests if necessary. Usually, abdominal ultrasound or laparoscopy can clearly check the size, location, shape and nature of the follicular cysts; when necessary, for patients with complicated conditions, CT or MRI can be done to clarify the uterine adnexa and so on. Warm reminder, if the patient has lower abdominal discomfort, hidden pain or severe abdominal pain due to cyst torsion, etc., need to consult a doctor in time.