For infertile women, a successful pregnancy is a joyous event, but bleeding in early pregnancy often makes them feel very nervous and fearful of miscarriage. In fact, bleeding in early pregnancy is very common, with statistics showing that up to 18% of women experience vaginal bleeding in the first trimester. There are many reasons for vaginal bleeding in early pregnancy, but the leading cause is a preterm miscarriage. It is important to note that a precursory miscarriage does not necessarily mean a miscarriage. It has been observed that the vast majority of women who experience vaginal bleeding in the first trimester have a good pregnancy outcome. When vaginal bleeding is low, the probability that the embryo survives and has a good prognosis is greater than 90%. Therefore, most women who have a small amount of vaginal bleeding in early pregnancy should not be overly stressed. When vaginal bleeding is high and the woman is older, the fetal heartbeat is slow, and the gestational sac is <16 mm< span=""> in size, there is a high chance of an adverse pregnancy outcome. Ultrasound can rule out vaginal bleeding due to abnormal pregnancy and also clarify the development of the embryo, which can provide a reference for further medication by the doctor. In most cases, the intrauterine blood accumulation will gradually decrease and the growth rate of the gestational sac should increase by about 1mm per day, so it is necessary to review the ultrasound 5-7 days after bleeding. How to prevent bleeding in early pregnancy? In early pregnancy, you can be active, but you should be careful not to strain, especially not to do physical work that will increase the burden on your body. For example, do not stand for a long time and lift heavy objects. The mother’s mood also plays a very important role in the success of pregnancy preservation. An optimistic attitude and active cooperation with your doctor can help you get through this special period.