The protrusion of the navel during pregnancy is determined by the growth and development of the fetus and the physical condition of the pregnant woman. Usually the navel will bulge in the fifth month of pregnancy. Belly button protrusion during pregnancy often refers to the rise of the uterine fundus above the navel area, which is likely to occur in most pregnant women around six months of pregnancy, i.e. 24 weeks. The navel area itself is a weak link and its protrudes under tension. However, the specific month in which the belly button protrudes is also related to the thickness of the abdominal wall of the pregnant woman. If a woman’s body type is thin, the belly button protrudes earlier and may protrude in about 5-6 months of pregnancy. And women with a fat body type, may be pregnant 7 months when the belly button protrudes. It is recommended that pregnant women with a protruding belly button should pay attention to cleanliness and hygiene, especially the navel, which is one of the weaker links and can easily cause infection, so you can choose to disinfect iodine.