Infant hernia including inguinal hernia, umbilical hernia, congenital diaphragmatic hernia, different parts of the hernia clinical manifestations are different, the main manifestation of the corresponding parts of the reproducible mass. 1. Inguinal hernia: inguinal area or scrotum, labia, the appearance of neat, smooth, slightly elastic mass, when the child crying, coughing, can make the intra-abdominal pressure increased, resulting in the appearance of the mass or enlargement, in the quiet, lying down when the mass can disappear, more not accompanied by other symptoms. 2. Umbilical hernia: a spherical or hemispherical protruding mass in the umbilicus, when crying, coughing due to the increase in intra-abdominal pressure can make the mass more obvious, when lying down quietly, the mass can be narrowed or disappeared. 3. Congenital diaphragmatic hernia: children with esophageal hiatal hernia may have vomiting, acid reflux and other symptoms, children with congenital posterior lateral diaphragmatic hernia may have epigastric pain, dyspnea and other symptoms, children with congenital retrosternal hernia may have epigastric pain, abdominal distension, vomiting and other symptoms when the contents of the incarceration. If a child develops these symptoms and a hernia is suspected, he or she should consult a doctor for a definitive diagnosis and appropriate treatment under his or her supervision.