A hernia is a rupture or a tear in the lining of the tissues that surround the abdomen. These tissues are muscle and fascia and are very tough, but there are some inherent weak spots where the muscle/fascia typically tear. The two most common areas of hernia formation are in the groin (inguinal) or the belly button (umbilical). But, they can occur in other areas of the abdomen and also in previous areas of abdominal surgery where an incision has been made and the incision did not heal properly (incisional hernia). When a hernia occurs the internal organs, bowel, stomach, intra abdominal fat can protrude through the opening and become painful and bulge. The real danger is if the intra abdominal contents protrude and get stuck, this is called a strangulated hernia, the blood supply to the tissue is cut off and the tissue can die, creating a medical emergency and the need for surgery immediately. The reason to fix a hernia is to prevent this sudden occurrence.Depending on the size of the hernia, the approach to repair it varies. Some hernias can be repaired using a laparoscope, some require an open incision. Small hernias can be repaired by bringing the tissues back together and larger incisions may require a piece of mesh to "patch" the hole. There are many different types of mesh, nylon, prolene, biologic, the choice depending on the circumstances and the surgeon's preference and experience. The actual hernia "sac" needs to be identified, isolated from the surrounding tissues, reduced and the hole repair. This can take as short as 20-30 minutes, or may take several hours depending on the complexity of the repair. It sometimes can be combined with a tummy tuck or other procedures, but not always.A diastasis recti is a totally different medical condition. We all have two long, vertically oriented and broad muscles that start from our rib cage and connect to the pubic bone. They are about the size of a men's necktie and are called the rectus abdominis muscles or the "six-pack" muscles. The two muscles are separate, but are "kissing" in the midline (the linea alba connects them), at least initially. When we gain weight or become pregnant the muscles are stretched and pushed laterally or out to the side, this is what we call a diastasis recti. Surgical procedures can also transect or cut and weaken these muscles. When we perform a tummy tuck, the separation of the muscles is repaired by bringing the muscles back to the midline with very strong permanent sutures, the muscles are not cut. This is what gives the abdomen the very flat board like appearance after a tummy tuck, and also brings the waistline in closer. This is also the reason we do not like to perform the muscle repair until a woman is finished with child bearing. A person can become pregnant and can safely carry the baby, but the rectus muscles will get all stretched out again, ruining the repair from the tummy tuck.So, a diastasis recti is not a hernia, and the treatment is completly different. It is common to to see both a hernia, especially an umbilical hernia, and the diastasis recti together because patients that have weak tissue can develop hernias and diastasis recti. It is sometimes possible to fix both during a tummy tuck, but not always, depending on the circumstances. Plastic surgeons are trained to fix hernias, but typically a general surgeon will repair abdominal hernias. Of course, every case is different and I will inform my patients if I believe I can repair the hernia during a tummy tuck or not. Always consult with a Board Certified Plastic Surgeon who performs body contouring procedures frequently to assure the best possible result.Good Luck!