Abdominal wall hernia repair is one of the most common types of surgery. More than 1 million hernia repairs are performed each year in the United States, according to the U.S. Food and Drug Administration (FDA), and worldwide these surgeries are estimated to top 20 million annually. The prevalence of hernia repairs makes it especially important for people to be aware of their options—for surgery, anesthesia, and postoperative pain relief.
A hernia is the protrusion of an organ through the structure or muscle that usually contains it. The condition occurs most often in the abdominal wall, when the intestine pushes through a weak spot in the wall. The most common abdominal wall hernia is an inguinal hernia.
According to the FDA, inguinal hernias account for approximately 800,000 of the annual hernia repair surgeries in the United States. Men are eight to 10 times more likely than women to develop an inguinal hernia, and the risk rises with age: Occurrence is most common in people ages 75 to 80.
Some of the most common types of hernias are explained below.
- Inguinal hernias, in the inner groin area, occur when the intestine protrudes through either of two passages in the lower abdominal wall called inguinal canals. Researchers have estimated that about 27% of men and 3% of women will develop an inguinal hernia at some point in their lives.
- Femoral hernias, in the upper thigh/outer groin area, occur in deeper passages called femoral canals. They are much less common than inguinal hernias and are far more likely to occur in women than in men. They also present a higher risk of complications if they are not repaired.
- Ventral hernias occur though an opening in the muscles of the abdomen. There are three types of ventral hernias:
- Epigastric hernias occur above the bellybutton.
- Incisional hernias are caused by a weakening of the abdominal muscle resulting from an incision made during a previous abdominal surgery.
- Umbilical hernias, which occur near the bellybutton, are most common in newborns, especially those born prematurely. These hernias usually close on their own by the time the child turns 4. Umbilical hernias can be more problematic when they occur in adults.
- Hiatal hernias occur when the upper part of the stomach bulges into the chest through a small opening (the hiatus) in the diaphragm. The hiatus allows the esophagus, which carries food from the mouth to the stomach, to pass through the diaphragm.
A common symptom of most hernias is a noticeable lump or bulge, and potentially some discomfort or pain. The lump or bulge may not always be present; for example, it might go away when you lie down. Symptoms may worsen when you are standing, straining, or lifting heavy objects. Most hernias can be confirmed by a doctor during a physical exam, but sometimes imaging is necessary.
Hiatal hernia symptoms are an exception to the general rule, as they do not cause a bulge. But hiatal hernias may cause symptoms such as heartburn, acid reflux, and regurgitation of food or liquids, which are often treated with medication.
Hiatal hernia symptoms can often be treated with medication, but most other types of hernias require surgical repair, although not always immediately. There are two primary options:
- Open hernia surgery. The surgeon makes a cut in the groin to view and repair the hernia. After repairing the hernia, the surgeon uses stitches alone or stitches and a piece of mesh to close the abdominal wall. The mesh is designed to strengthen the weak area of the abdominal wall where the hernia occurred.
- Laparoscopic hernia surgery. The surgeon makes several small cuts in the lower abdomen and inserts special tools to view and repair the hernia. The surgeon typically uses a piece of mesh to close and strengthen the abdominal wall. There are some surgeons who opt for robotic repair, which means they sit at a console controlling robotic arms that perform the surgery.
While the use of mesh is predominant and has been shown to help prevent the recurrence of hernias, it also has potential complications, including a risk of chronic pain.
“Despite reduced rates of recurrence, there are situations where the use of surgical mesh for hernia repair may not be recommended,” the FDA advises. “Patients should talk to their surgeons about their specific circumstances and their best options and alternatives for hernia repair.”
“Watchful waiting” is considered a potential alternative to surgery when a hernia is causing minimal or no symptoms. People who delay surgery, especially men with an inguinal hernia, should watch for symptoms and see a doctor regularly.
About 70% of men with an inguinal hernia who delay surgery will develop new or worsening symptoms and will need surgery within five years, according to the National Institute of Diabetes and Digestive and Kidney Diseases. One risk of waiting too long is that a larger hernia is more difficult to repair.
Seek immediate medical attention if there are signs that your hernia has become stuck or strangulated, which can be life-threatening and usually requires emergency surgery. Signs of this condition include:
- A hernia bulge that is suddenly larger than before
- A hernia bulge that used to go back inside the abdomen but no longer does
- Redness in the area of the hernia
- Sudden or severe pain or tenderness in the area of the hernia
- Symptoms of intestinal obstruction, such as abdominal pain, bloating, nausea, and vomiting
Several anesthesia options may be discussed with your anesthesiologist:
- Local anesthesia with sedation, also referred to as local with monitored anesthesia care, or MAC. This is the most frequently used option. Local anesthesia is usually administered as a one-time injection of medicine that numbs a small area of the body. Sedation relaxes you and is usually administered and adjusted through an IV placed in your arm. The level of sedation can range from minimal (you’ll feel drowsy but able to talk) to deep (you probably won’t remember the procedure).
- Nerve block and sedation. This might be used for inguinal or femoral surgeries, especially if the patient has severe heart or lung disease that precludes the use of general anesthesia. Nerve blocks involve the injection of an anesthetic into specific nerves to block pain signals.
- Spinal block and sedation. This less frequently used option numbs the body from the waist down. The medication for the spinal block is injected through a needle inserted in the lower back into the spinal canal.
- General anesthesia. This type of anesthetic renders you completely unconscious. It also impairs your breathing, so a breathing tube, ventilator, and inhalation anesthetic are used.
Discuss the options with the anesthesiologist assigned to your surgery. Anesthesiologists are experts in determining the safest and most effective anesthesia for a particular patient. Although they consider surgeon and patient anesthesia preferences, the type and size of the hernia could preclude some options. For example, general anesthesia is required if the surgeon needs to use a scope during the surgery or if the hernia is particularly large.
The anesthesiologist should ask you about your prior experience with anesthesia and about any anesthesia reactions among your family members, going back multiple generations if possible. You should also be asked about your current health and your health history, including any chronic pain that could make it difficult for you to remain comfortable under sedation instead of general anesthesia.
Let the anesthesiologist know if you use marijuana, CBD products, or other substances, as these can affect the type and amount of anesthesia you can safely receive. You may also be advised to temporarily stop using CBD in the days leading up to and after surgery because of its potential to increase the risk of bleeding.
Hernia surgeries typically do not cause a high level of postoperative pain, and most pain can be managed with medications such as acetaminophen (Tylenol or other brands) and ibuprofen (Motrin, Advil, etc.). These pain relievers can be supplemented with opioids, although this often is not necessary.
Limiting the use of opioids helps avoid negative side effects, including problems urinating after hernia surgery, which have been known to occur in a minority of patients after inguinal hernia repair. Postoperative urinary retention occurs most often in people over age 50, especially males. Taking medications as directed prior to surgery, including medicines for benign prostatic hyperplasia, which is caused by enlargement of the prostate, also helps prevent postoperative urinary retention.
Under medical direction, measures might also be taken before surgery to limit postoperative pain and nausea, such as taking acetaminophen for pain and a small dose of promethazine to prevent nausea. Consult your anesthesiologist about whether these are appropriate options for you.
Your surgeon will provide you with a specific plan but may not be able to give you an exact time frame in advance. Doctors usually cannot fully diagnose the severity of a hernia until they perform the surgery.
Hernia procedures are usually outpatient surgeries. In general, the sooner you can start moving afterward, the better. This movement helps prevent constipation and blood clots. Be sure to adhere to the doctor’s instructions about what you can lift, how to lift, and how long to remain on any restrictions; some may be permanent.
Chronic pain affects about 10% of inguinal hernia patients after surgery, according to the International Guidelines for Groin Hernia Management. The guidelines define chronic pain as bothersome moderate pain impacting daily activities for at least three months.
The guidelines also indicate that chronic pain is a higher risk for patients who are young or female, experience high preoperative or high early postoperative pain, have a recurrent hernia, or undergo open repair. Mesh can also cause or contribute to chronic pain. Studies indicate that the risk of chronic pain is less with laparoscopic repair than with open repair, but the type and size of the hernia sometimes preclude the laparoscopic option.
If you suffer from chronic pain, consult with a pain management specialist to consider options such as medication and nerve blocks. Many anesthesiologists are pain management specialists.
Anesthesiologists work with your surgical team to evaluate, monitor, and supervise your care before, during, and after surgery—delivering anesthesia, leading the Anesthesia Care Team, and ensuring your optimal safety.