Infant umbilical hernia is caused by incomplete development of the abdominal wall at the navel, resulting in a protrusion at the umbilicus. To alleviate this, it is important to prevent the child from crying excessively and avoid gastrointestinal infections. Digestive issues should be treated promptly, as these conditions can increase abdominal pressure and make the protrusion at the umbilicus more pronounced. Other than these precautions, special treatment is generally not required. Typically, an umbilical hernia will narrow and may even close naturally as the child ages. About 80% of children see improvement by the age of two without needing treatment. However, if the hernia has not closed by two years of age, or if the diameter of the hernia ring is greater than 2 centimeters, surgery may be required to resolve it.