Occasional sneezing does not usually cause miscarriage, but over-frequent sneezing may increase the risk of miscarriage. 1. Generally, pregnant women with mild symptoms of cold and flu, such as runny nose and sneezing, have little effect on the fetus and will be fine after a few days of rest. The fetus is protected by amniotic fluid in the mother’s uterus, and general sneezing will not cause any effect. After all, the number of people who have miscarried because of a sneeze is very few. 2. If you sneeze too hard, it may cause uterine contractions, increased abdominal pressure, etc. If the number of times is frequent and strong, this may lead to miscarriage. It is recommended that pregnant women should be on time for maternity checkups, and should consult a doctor in time when frequent sneezing occurs, and follow the doctor’s instructions to standardize the treatment, so as to avoid adverse consequences.