Infant umbilical hernia is caused by a congenital weakness in the umbilicus, usually manifesting as an umbilical bulge during increased abdominal pressure. Generally, an umbilical hernia does not cause children to cry. However, if the hernia ring is relatively large, and abdominal structures such as the greater omentum or small intestine protrude through it, incarceration can occur, leading to abdominal discomfort and crying in the child. In such cases, carefully pushing the hernia back in is usually sufficient. Umbilical hernias typically do not require special treatment; it is only necessary to prevent prolonged intense crying in children and to actively prevent and treat indigestive diseases. Generally, as the child grows older and their physique strengthens, the hernia ring narrows and may even close naturally. Only a small number of babies, if the hernia ring diameter is larger than 2 cm, or if there is a noticeable umbilical hernia after the age of two, might experience discomfort requiring surgical treatment.