You cannot eat crabs at full term to induce labor. Crab is a food and does not have the effect of inducing labor. Some people have contractions when they eat crabs, probably because some crabs are made unhygienically and pregnant women have diarrhea and other symptoms after eating them. The intestines are adjacent to the uterus, and the increased intestinal peristalsis affects the uterus, causing it to experience contractions. This way is dangerous and should not be used by pregnant women. Pregnant women who are full-term and want to have a normal labor can do appropriate activities, which can help the delivery. However, pay attention to the individual and do not overwork. If the labor still does not start a week beyond the due date, you need to consult a doctor in time and have the labor induced under the doctor’s guidance. Depending on the condition of the pregnant woman, she can be induced by water bladder, induced by contractions and so on.