The main manifestation of inguinal hernia is the appearance of a reversible mass in the inguinal region, which is small at first and appears only when the patient is standing, working, walking, running, coughing or when the child cries. With the development of the disease, the mass may gradually increase in size and descend from the groin to the scrotum or labia majora, making walking difficult and interfering with labor; if the inguinal hernia becomes lodged, it may cause severe pain and require emergency surgery. An inguinal hernia is visible or palpable. When you notice a lump appearing at the base of the thigh or near the abdominal femoral area, which may disappear when lying down and may occasionally be painful and uncomfortable, and may worsen with exercise, you may have a hernia and should see a doctor as soon as possible. Within a year after birth, parents can see or feel a significantly enlarged swelling in the scrotum of these young infants, and light pressure on the swelling with a finger can make it return to the abdominal cavity. This is an infant hernia.