Common causes of vaginal bleeding in early pregnancy (1-3 months): 1st possibility: miscarriage [risk factors] fetal chromosomal abnormalities, hormonal imbalance, congenital abnormalities and defects of the uterus, immune system problems, infections, habitual miscarriage, chronic diseases such as heart disease, kidney disease and blood disorders, overwork, stress, intense sexual life, late nights, spa massage, environmental pollution, drug abuse, smoking, alcohol, caffeine or any food that promotes uterine contraction. Drug abuse, smoking, alcohol, caffeine, or any food that promotes uterine contractions. [Physician’s advice] Since the embryo is not stable in the bed before the placenta develops, many factors can easily cause miscarriage. When a miscarriage occurs, the embryo is separated from the uterine wall to varying degrees, and once the blood vessels on the separated surface rupture, it can cause vaginal bleeding symptoms. According to a medical study, more than half of pregnant women with bleeding in the first trimester will pass and continue to have a successful pregnancy; about 30 percent may face a spontaneous miscarriage; and nearly 10 percent may have an ectopic pregnancy or other problems. Some pregnant women worry that if they have abnormal vaginal bleeding in early pregnancy, their baby will not be healthy. Many studies have shown that more than half of the miscarriages may be caused by abnormalities in the embryo itself, as humans have a self-elimination function and most fetuses are normal if they can continue the pregnancy. Risk factors: Previous pelvic inflammation, pelvic adhesions, tubal surgery, previous pregnancy with ectopic pregnancy. Physician’s advice】 If the embryo is not implanted in the uterus, it is called ectopic pregnancy, and the incidence is about 1%. Since the walls of the fallopian tubes are very thin, they are unable to provide sufficient blood circulation and nutrition to the embryo, and therefore abnormal vaginal bleeding, even severe abdominal pain or shock due to heavy intra-abdominal bleeding, may occur at 7-8 weeks of pregnancy. In the early stages of pregnancy, if ultrasound examination fails to detect the presence of an embryo in the uterus, a blood test for chorionic hormone (Beta-HCG) must be performed as soon as possible to diagnose the possibility of ectopic pregnancy and provide appropriate treatment in real time. Risk factors: Mother’s age less than 20 and more than 40 years old, lack of carotene and animal fat in the diet, advanced age of the father, history of miscarriage, history of a previous pregnancy with gravidity, and smoking. The incidence of staphylococcal disease is about 1 in 1000. It is called staphyloma because the placental chorionic trophoblast cells proliferate abnormally and the terminal chorionic villi turn into blisters, which are connected to each other in bunches and resemble grapes. In the early stages of pregnancy, there are symptoms such as abnormal vaginal bleeding, severe vomiting and even heart palpitations. Usually, the diagnosis is made by ultrasound and blood test for chorionic hormone; the treatment is to remove the gravidity by endometrial vacuum aspiration and follow up the chorionic hormone index until it is normal for 3 consecutive weeks, and then once a month until it is normal for 6 months. Strict contraception must be used during the follow-up period, and pregnancy should be planned after 1 year. Risk factors: complicated sex life, poor hygiene, abnormal lifestyle, poor resistance. The doctor’s advice] For early pregnancy bleeding, many people tend to ignore the problems of the cervix. If the cervix is severely inflamed, resulting in erosion, or if there is already cervical flesh, it is easy for the surface microvessels to rupture due to the hormonal changes of pregnancy. In recent years, the most common age group for cervical cancer has quietly decreased to 30-40 years old; therefore, being pregnant does not necessarily mean that there is no problem with the cervix, and regular pap smears should be done before and after pregnancy; if there is bleeding in the early stages of pregnancy, the cervix should also be checked for problems to make a judgment.