Infant umbilical hernia refers to a large protrusion at the navel of an infant, generally composed of the remaining umbilical cord and a part of the intestine. Typically, if the protrusion is not very large, such as less than one centimeter, it usually does not include the intestines. However, if it is particularly noticeable and large, there might be protrusion of the intestines, hence the area may feel bloated when touched.

An infant umbilical hernia may cause localized accumulation of the intestines, and some children might cry and show signs of pain while feeding. However, generally speaking, most umbilical hernias do not have obvious symptoms, and there is no need for excessive worry. As the child ages, there is a possibility of improvement, and the hernia might heal on its own.