Hernias can also occur near the site of previous trauma to the abdomen or an incision from a prior surgery. Muscles that heal after an incision can sometimes break down, and a hernia can form. Patients who develop these types of hernias may have multiple incisions in the same place.
When the hernia forms, a hole in the abdominal wall muscle develops, allowing the inner lining of the abdomen to push through the weakened area. A loop of intestine or fatty tissue may push against this lining, forming a sac. At this point, you may have no idea you're developing a hernia, although you may feel burning or tingling.
You may have heard that hernias are caused by heavy lifting, but that is just a myth. While heavy lifting and other strenuous activities can aggravate a hernia, they don't actually cause them. Most hernias are the result of a weakness in a muscle that exists long before a hernia even appears.
- Twisting, pulling, or muscle strains
- Weight gain
- Chronic constipation
- Chronic cough