Ovarian cysts are a common disease in gynecology, which includes 2 major types of cysts, non-redundant cysts and redundant cysts, most of which can disappear on their own, while redundant cysts must be surgically removed to be cured. Therefore, the differential diagnosis of the two is important. In gynecology, ovarian cysts are divided into follicular cysts, corpus luteum cysts, lutein cysts, polycystic ovary syndrome, ovarian endometriosis cysts (chocolate cysts), inflammatory ovarian cysts and ovarian cystic tumors. Among them, follicular cysts, corpus luteum cysts, luteinizing cysts and polycystic ovary syndrome are non-redundant cysts that can disappear on their own, and the diameter of cysts is usually small, most of them do not exceed 5 cm, while only a few corpus luteum cysts and luteinizing cysts can exceed 5 cm in diameter. The cysts can be lobulated and have multiple septal light band echogenicity, while the hemorrhagic luteinizing cysts can be of fine dotted echogenicity, coarse reticulated echogenicity, cystic echogenicity, mixed echogenicity, simple cystic echogenicity and rupture type depending on the amount and time of bleeding. CT, ultrasound and MRI have high diagnostic value in deciding the surgical and non-surgical treatment of ovarian cysts. If the cysts have thin walls, good intracapsular acoustic permeability and clinical menstrual disorders without acute abdominal pain, they should be treated with menstrual regulation and reviewed regularly; if the cysts are large, growing fast and have obvious symptoms, they should be treated immediately. The endometriosis like chocolate cyst is neither inflammation nor tumor, but it has the characteristics of proliferation, infiltration, spread and even metastasis of malignant tumor, and the development and spread of the lesion is under the control of endocrine function, which is the unique disease characteristic of chocolate cyst and belongs to a special disease in gynecology. 1. Abnormal menstrual pain. Dysmenorrhea is the most obvious symptom of endometriosis, but it is the most easily ignored precursor. 2. Painful intercourse. This is also an obvious sign and may be accompanied by spotting bleeding. 3. The main manifestation is a sudden onset of severe and persistent lower abdominal pain without abnormal vaginal bleeding. The disease is usually seen in people under 20-45 years old, initially as unilateral cysts, and for a long time as bilateral cysts. The cystic mass can be felt in the adnexal part and the size of the ovarian cyst is suggested by the sensation of the fingertips, and those with smooth and active surface are benign cysts. The pain often starts from one side and later spreads to the whole lower abdomen, and its degree of sharp cracking often exceeds that of other causes of gynecological emergency abdomen, and is often accompanied by muscle tension, rebound pain and other signs of peritoneal irritation, but the appearance of shock is extremely rare. 5. Some cases may have mildly elevated body temperature and white blood cell count. A pelvic examination can palpate a painful parametrial mass in about 2/3 of cases, but in the rest, the patient has difficulty cooperating due to abdominal muscle resistance, and no obvious mass can be detected. 6. In some cases, a painful nodule in the rectal fossa of the uterus or on the sacral ligament can be palpated. 7, Some cases are found on physical examination with no obvious conscious symptoms; some cases are found with infertility consultation. The advantages of CT and ultrasound-guided minimally invasive interventional therapy: 1. Only local anesthesia is needed, no need for general anesthesia and open surgery and hospitalization. 2.No damage to the ovaries, no effect on ovarian function and normal ovulation, no effect on future fertility. 3.The sclerosing drug injected in the cyst can be withdrawn after a few minutes, and there will be no drug irritation and drug spillage. 4.Ultrasound and CT-guided puncture is accurate, avoiding blood vessels and intestines, and monitoring the whole treatment process in real time. It is safe and effective, and is performed under visualization, with accurate positioning and no damage to the surrounding organs. 5, no bleeding, no pain, fast recovery, generally once can be healed. Analysis of other treatment methods: Traditional open surgery: the advantages are clear vision during surgery and mature technology, the disadvantages are large trauma, severe postoperative pain, slow recovery, as well as greater damage to the ovaries, postoperative menstrual disorders and other symptoms, and most of the clinical recurrence. Laparoscopic surgery: In laparoscopic surgery, three to four small incisions are first made in the abdominal wall, then a trocar is placed into the abdominal cavity, and then special laparoscopic instruments are inserted into the abdominal cavity through the trocar, where the camera device can clearly display the image of the abdominal cavity on the monitoring screen, and the surgeon looks directly at the screen to complete various surgical operations. Laparoscopic surgery has the advantages of no abdomen opening, small trauma, fast recovery, and light postoperative pain, but the surgery is performed through an internal lumpectomy, and the field of view during surgery is unclear, just like operating in a “keyhole”, which is extremely difficult to operate clinically, and not only is it difficult to guarantee the treatment effect, but also, if one is not careful, it may even endanger the surrounding adjacent organs, and the risk of surgical complications is large! The risk of complications is high! In addition, the cyst wall is closely adhered to the surrounding tissues, so laparoscopic surgery is difficult to remove the cyst completely at one time, and sometimes it needs to be repeatedly removed, and during the removal process, the discharge of a large amount of necrotic tissue will cause secondary pelvic infection and tubal adhesions, which will cause new harm to women’s reproductive health.