Early symptoms of ectopic pregnancy are mainly small amount of vaginal bleeding and lower abdominal pain. If the embryo activity is not strong, it can be treated conservatively with oral medication, but if the mass is too big or the HCG gradually rises, it is recommended to operate. Ectopic pregnancy is mainly caused by pelvic inflammation and tubal abnormalities, such as structural and functional abnormalities, but also may be the quality of the fertilized egg itself. The normal fertilized egg is deposited in the uterine cavity, but due to the abnormal tubal transport, the fertilized egg is deposited inside the fallopian tube to form an ectopic pregnancy, which in turn leads to abnormal bleeding, adnexal mass or even intra-abdominal haemorrhage after rupture. This bleeding does not necessarily manifest as vaginal bleeding, but focuses on the pelvic cavity. In severe cases, the patient may feel unable to stand up straight, pain radiating to the back of the chest, nausea and vomiting or even fainting. All pregnant women should be clear whether it is intrauterine pregnancy or ectopic pregnancy, the most accurate ultrasound found no pregnancy tissue in the uterine cavity, but in the adnexal area found mixed mass, can be combined with HCG doubling and progesterone value size of the initial judgment, hcg greater than 2000 consider the embryonic activity is relatively large, it is recommended to actively surgical treatment, you can choose to conservative surgery or the affected side of the salpingo-oophorectomy. In short, ectopic pregnancy should not be underestimated, conservative treatment can be oral mifepristone or combined application of MTX chemotherapy drugs. However, the treatment must be carried out under the guidance of a doctor to prevent life-threatening situations.