A hernia, also known as a hernia, is a condition in which an organ or tissue in the body leaves its original physiologic location and waits through a defect or orifice until it is in another location. Common causes are congenital or acquired defects resulting in weakness of the abdominal wall or increased intra-abdominal pressure, and hernias can affect the digestive and urinary systems. Common causes and effects are as follows: I. Causes: 1. Weakness of the abdominal wall: Both congenital and acquired factors may cause weakness of the abdominal wall. Common congenital factors such as the passage of some tissues from the abdominal wall can lead to weakness of the abdominal wall in that area, and the underdevelopment of the white line of the abdomen can also lead to weakness of the abdominal wall; common acquired factors include incomplete healing of surgical wounds in the abdomen, old age or obesity leading to atrophy of the abdominal wall muscles. Heredity or smoking may also lead to a weak abdominal wall; 2. Increased intra-abdominal pressure: coughing, sneezing, pregnancy, crying babies, forceful defecation, heavy physical labor, etc. can lead to increased intra-abdominal pressure, and a transient increase in intra-abdominal pressure or a sustained increase in intra-abdominal pressure may lead to a hernia. II. Effects: 1. Digestive system: Hernia can lead to changes in the position of organs or tissues, which commonly causes symptoms such as abdominal distention and constipation. The change in the position of the intestine may lead to disruption of the homeostasis of the physiological environment in the abdominal cavity, inducing inflammation of the intestine or intestinal obstruction, which may affect the digestive system. 2. Urinary system: Because of the location of the groin adjacent to the urinary system, a hernia may lead to symptoms such as frequent and urgent urination, and may even affect the growth and development of children and the sexual function of adults.