Infant umbilical hernia is caused due to the weak abdominal wall around the navel and inadequate prenatal development. About 80% of infant umbilical hernias will gradually decrease and close as the child grows older and their physique develops. During this period, it is sufficient to avoid increased abdominal pressure, typically by preventing prolonged and intense crying in the child, and by actively treating gastrointestinal diseases that increase gas and abdominal pressure. Previously, children were often treated using umbilical hernia belts; however, there is now scientific evidence showing these are ineffective. Conversely, improper use of an umbilical hernia belt can cause damage to the child's abdominal skin. If the child's hernia has not healed by age two, or if the hernia ring is larger than 2 cm in diameter, surgical treatment may be necessary.