If you have vaginal bleeding in the second month of pregnancy, you should first observe whether your body has other symptoms, such as abdominal pain, vomiting, abdominal cramping, disappearance of early pregnancy reaction, etc. If these manifestations occur, you should go to the hospital in time and conduct relevant examinations under the guidance of doctors to clarify the causes of bleeding before taking corresponding treatment. Physiological bleeding is the period of early pregnancy in the second month of pregnancy, when the hormone level in the body fluctuates significantly and the influence of hormone level leads to irregular shedding of the endometrium, resulting in physiological bleeding during early pregnancy. This kind of bleeding will not affect the development of the embryo and will not cause miscarriage, so it can be observed. Pathological bleeding 1. Premature miscarriage: embryonic dysplasia, strenuous physical activity, after sex and low progesterone may cause pre-miscarriage and symptoms such as increased vaginal bleeding or increased abdominal pain, it is recommended to give timely medication to protect the fetus, such as oral progesterone capsules and dydrogesterone tablets; 2. Embryonic cessation: vaginal bleeding may occur when the embryo stops developing and the pregnancy should be terminated as soon as possible. Cervical diseases: cervical polyps or acute cervicitis may cause vaginal bleeding, which should be treated under the guidance of doctors according to the symptoms and signs; 4, gravida: early stage of gravida may cause nausea, vomiting, or irregular vaginal bleeding, so it is recommended to undergo cervical surgery and do pathological examination after removing tissues; 5, ectopic pregnancy: if pregnancy is detected only by pregnancy test paper, it may be ectopic pregnancy. pregnancy, it may be bleeding caused by ectopic pregnancy, which can cause vaginal bleeding, lower abdominal cramps and other manifestations. If there is no rupture and the embryo is relatively small, conservative treatment, such as medication, can be carried out, or treatment can be carried out through surgery.