The abdominal organs are covered by a membrane called the peritoneum, which during fetal development is open and passes through the inguinal canal towards the scrotum (or labia majora in girls). The spermatic cord, blood vessels of the testicles, and the ligament that holds the uterus in girls also pass through the inguinal canal. Around the time of birth, the peritoneum in this area adheres and closes, sealing the inguinal canal.
Sometimes, the closure process is not perfect, and there remains a connection between the abdominal cavity and the inguinal canal, causing "something" from the abdomen to protrude and become visible. This condition is called inguinal hernia. In cases where the opening is very small and only fluid accumulates around the testicles, it is called a hydrocele.
The concern is when a part of the intestine is pushed towards the inguinal canal and cannot return to the abdominal cavity, a condition known as incarcerated hernia or "incarcerated" hernia. This situation may require urgent surgery to avoid intestinal complications, and that is what we want to prevent.
After birth, an inguinal hernia that has not closed on its own will not resolve spontaneously, and to prevent the risk of incarceration, it is recommended to undergo corrective surgery shortly after diagnosis.