what causes hernia

A hernia occurs when part of your insides bulges through an opening or weakness in the muscle or tissue that contains it. Most hernias involve one of your abdominal organs pushing through one of the walls of your abdominal cavity. Hernias can occur gradually as you get older and regular wear and tear on your muscles begins to add up. They can also result from an injury, surgery, or birth disorder. Specific types of hernias include inguinal, incisional, umbilical, hiatal, and femoral hernias. Ultimately, all hernias are caused by a combination of pressure and an opening or weakness of muscle or fascia. The pressure pushes an organ or tissue through the opening or weak spot. Sometimes the muscle weakness is present at birth, but more often, it happens later in life. Anything that causes an increase in pressure in the abdomen can cause a hernia, including lifting heavy objects without stabilizing the abdominal muscles, diarrhea or constipation, and persistent coughing or sneezing