Infant umbilical hernia occurs due to a thin abdominal wall around the navel, caused by insufficient prenatal development. When a child cries intensely or has increased gas in the gastrointestinal tract, which raises the abdominal pressure, the navel may bulge out, forming an umbilical hernia. It does not require special treatment, and using a hernia belt is ineffective and may even cause local damage and physiological discomfort in the child, thus it is not necessary to use one. Generally, it is sufficient to prevent long periods of intense crying in the child, actively prevent and treat diseases of the child’s digestive system, and avoid increased abdominal pressure to prevent recurrent navel bulging. Over 80% of children will see the hernia ring gradually narrow and even close naturally before the age of two as their physical development matures. Only a small portion of children who still have a noticeable umbilical hernia after two years, or whose hernia ring diameter is greater than two centimeters, might need to consider surgical treatment.