How many weeks of pregnancy can rule out ectopic pregnancy

Ectopic pregnancy is a pregnancy phenomenon that every woman does not want to encounter. Ectopic pregnancy mainly refers to the fertilized egg not implanting correctly and occurring outside the uterus. At this time, artificial abortion surgery must be performed. Moreover, severe ectopic pregnancy may require the removal of the woman's uterus, making her infertile for life. Therefore, in the early stages of pregnancy, pregnant women should go to the hospital for regular check-ups. So how many weeks of pregnancy can an ectopic pregnancy be ruled out?

How many weeks of pregnancy can rule out ectopic pregnancy

Gynecologists say that ectopic pregnancy is an abnormal pregnancy and a very dangerous disease in gynecology. The similarities between it and a normal pregnancy are amenorrhea and early pregnancy reactions (such as vomiting, dizziness, nausea, etc.), but the difference is that an ectopic pregnancy will cause abdominal pain and vaginal bleeding.

Under normal circumstances, when the embryo implants in the uterine cavity after a woman becomes pregnant, it is called an intrauterine pregnancy. If it implants somewhere outside the uterine cavity, it is called an ectopic pregnancy, which is also called ectopic pregnancy in medicine. The most common site of ectopic pregnancy is the fallopian tube, and a few can also be seen in the ovaries, cervix, etc. If it is not treated actively, it will cause rupture and heavy bleeding, and if it is not treated in time, it will be life-threatening.

Experts say: If women of childbearing age have amenorrhea for about 6-8 weeks and experience irregular vaginal bleeding accompanied by abdominal pain, they should be alert to the possibility of ectopic pregnancy. Abdominal pain is the main reason for patients to seek medical treatment. It often occurs in one case and can be sudden, like tearing, and accompanied by nausea and vomiting. Sometimes, blood in the abdominal cavity accumulates in the uterine crypts, irritating the rectum, causing the urge to defecate and a feeling of anal congestion. It is common to see women suddenly fainting or going into shock while defecating. If the bleeding increases, there will be a distending pain all over the body. If the blood flows to the diaphragm and stimulates the diaphragm, there may be radiating pain in the shoulder area. In order to rule out ectopic pregnancy, it is best to go to the hospital for examination after the sudden menopause to see what caused it.

How to detect ectopic pregnancy

1. HCG determination. It is currently an important method for early diagnosis of ectopic pregnancy.

2. Progesterone determination. The serum P level in ectopic pregnancy is low, but it is relatively stable at 5 to 10 weeks of gestation, and a single measurement has a great diagnostic value. Although there is overlap between normal and abnormal pregnancy serum P levels, making it difficult to determine the absolute critical value between them, a serum P level lower than 10 ng/m1 (radioimmunoassay) often indicates abnormal pregnancy, with an accuracy rate of about 90%.

3. Ultrasonic diagnosis. Type B ultrasound examination is particularly commonly used for the diagnosis of ectopic pregnancy, and vaginal ultrasound examination is more accurate than abdominal B-type examination.

4. Diagnostic curettage. When ectopic pregnancy cannot be ruled out, a diagnostic curettage can be performed to obtain the endometrium for pathological examination. However, the endometrial changes in ectopic pregnancy are not characteristic and may be manifested as decidual tissue, highly secretory phase with or without A-S reaction, and various secretory and proliferative phases. Changes in the endometrium are related to whether the patient has vaginal bleeding and the duration of vaginal bleeding. Therefore, the diagnosis of ectopic pregnancy based solely on diagnostic curettage has great limitations.

5. Posterior fornix puncture. Posterior uterine fornix puncture is widely used to assist in the diagnosis of ectopic pregnancy. Blood can often be drawn out and does not coagulate after being placed, and contains small blood clots. If no fluid is removed, the diagnosis of ectopic pregnancy cannot be ruled out.