In the early stages of pregnancy, there are some mild abdominal pain and discomfort, but they do not last long, and are often accompanied by vomiting. This is a manifestation of early pregnancy reaction. Pain in the upper abdomen is mostly caused by increased physiological gastric acid secretion in early pregnancy; occasional cramps in the lower abdomen are related to the uterine expansion pulling upward on the ligaments supporting the uterus. With the end of the early pregnancy, these pains and discomforts will naturally disappear. Enlarged uterus, painful pressure It manifests as lower abdominal pain during the 3rd to 4th month of pregnancy. During this period, the uterus grows rapidly, and the organs around the uterus are squeezed, causing lower abdominal pain. As the pregnancy progresses, the symptoms of uterine compression gradually improve, and the pain will be alleviated or disappear completely. Round ligament pain in the uterus It manifests as persistent dull pain in the lower abdomen without any cause during the 5th to 6th month of pregnancy. At this time, the uterus grows fastest, and the round ligaments supporting the uterus also stretch, lengthen, and increase in tension. The uterine wall where the round ligament is attached is pulled, causing pain. Hiatal hernia It manifests as upper abdominal pain during the 4th to 7th month of pregnancy, often accompanied by chest tightness, shortness of breath, chest pain, feeling of fullness, acid reflux, hiccups and other symptoms. During this stage, as the uterus grows, the intra-abdominal pressure increases, and about 30%-50% of pregnant mothers will have their esophageal hiatus widened, which will lead to the formation of esophageal hiatal hernia. The compression and spasm of the esophagus will cause upper abdominal pain, which is sometimes more obvious in the late pregnancy. Early uterine contractions The symptoms are occasional tightness in the abdomen from the third month of pregnancy, sometimes accompanied by mild pain, with no regularity in the occurrence time and no vaginal bleeding. This is caused by irregular uterine contractions during the development and growth of the fetus in the uterine cavity. Exercise, tension and fatigue can also cause protective uterine contractions. It is a physiological phenomenon and there is no need to worry. Threatened abortion It manifests as a small amount of vaginal bleeding within 7 months of pregnancy, which is often less than the menstrual volume and is mostly bright red, sometimes accompanied by lower abdominal pain, back pain and a feeling of falling. Factors that lead to threatened abortion include endocrine dysfunction, infectious diseases, high fever, severe anemia, severe malnutrition, exposure to radioactivity, toxic substances, reproductive tract malformations, uterine fibroids, etc. Chromosomal abnormalities in the fertilized egg can also cause threatened abortion. |
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