Pregnancy is undoubtedly a dream come true for most women, but will you be able to become a mother once you are pregnant? This can only be ensured through further detailed examination, as sometimes the fertilized egg may go where it shouldn’t, resulting in an ectopic pregnancy. I once met a patient who was a senior mother with a son. For a while, she suddenly started to feel nauseous and wanted to vomit. Thinking back, she hadn’t had her period for over a month, and she was sleepy and constipated …… Could she be pregnant again? As a result of her experience with childbirth, she was careless this time and just hastily went to the drugstore to buy a pregnancy test to verify that she was pregnant, without going to the hospital for a detailed examination. As time passed and the pregnancy reaction became more and more obvious, I thought a senior mother-to-be was born. One day, while she was listening to music and reading a book as usual, she suddenly felt a sharp pain in the lower part of her abdomen and then noticed a bright red fluid coming out of her lower body. In fear and pain, she was rushed to the hospital. Through ultrasound examination, she was diagnosed with – ectopic pregnancy! As the development of the embryo had caused a tear in the fallopian tube, doctors had to take emergency surgery to remove the embryo and repair the fallopian tube. Although the mother-to-be was not seriously injured, a wonderful pregnancy came to a hasty end. The location of an ectopic pregnancy is immediately known as an ectopic pregnancy, which means that the fertilized egg has taken up residence outside the uterus and grown and developed. In ectopic pregnancy, where does the fertilized egg go instead of staying in the uterus? The fallopian tube is the sacred place for the union of sperm and egg, and the fertilized egg needs to pass through it into the uterus. However, this long tunnel is sometimes full of crises, and the fertilized egg can get trapped in it if it is not careful. Usually, in 95% of cases of ectopic pregnancy, the fertilized egg is “stuck” in the fallopian tube. There are three main “organs” in the fallopian tube: the Ampullar Potion, where the fertilized egg fails to escape in 80% of pregnancies that occur in the fallopian tube; the Isthmus, where 12% of fertilized eggs fail, and the Interstitial, where 12% of pregnancies occur in the fallopian tube. The interstitial region is less dangerous, with only an unfortunate 8% of eggs falling here. In addition to the fallopian tubes, ectopic pregnancy can also occur in the ovaries, the cervix and the abdomen. Of these, those that occur in the abdominal cavity are more common because the fertilized egg runs off to the pelvis or intestines where it can develop and grow. In abdominal pregnancy, the mother can clearly feel the outline of the fetus, but gentle fetal movements can be very painful or even cause abdominal cramps. Abdominal pregnancies often have serious consequences, such as hemorrhage and, in severe cases, even the death of the mother. So how does a tragedy like an ectopic pregnancy actually happen? Causes of ectopic pregnancy I have seen such a patient: she started smoking when she was 16 years old, then she got married for 3 years and has not been able to have a baby, when she was troubled, she suddenly had nausea and vomiting and all kinds of discomfort, and she was pregnant after the examination of ultrasound, unfortunately it was an ectopic pregnancy …… Smoking is indeed a major cause of ectopic pregnancy, according to statistics, 2% of smoking A 2010 study by the University of Edinburgh (UK)[3] pointed out that cotinine, which is contained in cigarettes, causes an increase in a protein called PROKR1 in the fallopian tube (which normally enables a fertilized egg to settle in the uterus), which may lead to ectopic pregnancy. In addition, smoking may decrease the mobility of the tubal cilia, which also makes ectopic pregnancy more likely to occur. In addition, people with a history of ectopic pregnancy and fibroids should pay more attention to this. This is because the usual treatment for ectopic pregnancy is surgery to cut open the fallopian tubes, remove the embryo, and repair the tubes. But no matter how deftly it is done, it will leave scars on the fallopian tubes. When a second pregnancy occurs, the presence of the scar may allow the fertilized egg to be blocked again from passing properly to its destination, which may result in a second ectopic pregnancy. Inflammation and infection of the fallopian tubes can narrow the tubes, preventing the passage of the fertilized egg. Some women are also born with deformities in their reproductive system, which prevents the fallopian tubes from functioning properly, leading to ectopic pregnancy …… It can be seen that there are both external and internal causes of ectopic pregnancy, and in order to ensure the safety of mother and child, cigarettes should certainly be kept away, and the examination before and after pregnancy must not be omitted!