How Long Does Abdominal Hernia Surgery Take?

Most abdominal hernia surgeries take between 30 minutes and two hours of actual operating time, but the range stretches well beyond that depending on the type and size of hernia, the surgical approach, and the patient’s anatomy. A straightforward inguinal hernia repair on one side often finishes in about an hour, while a complex ventral hernia with a large defect can run several hours. Understanding what drives those differences helps you set realistic expectations before your procedure.

Inguinal Hernia Repairs Are the Most Common and Usually the Quickest

Inguinal hernias account for the vast majority of abdominal hernia operations, and their repair times offer the best starting point for estimating how long you’ll be in the operating room. A contemporary study comparing open, laparoscopic, and robotic approaches for unilateral (one-sided) inguinal hernia found median operative times of 62, 67, and 67 minutes respectively.¹ In other words, the three main techniques land in roughly the same ballpark for a single-side repair, typically finishing somewhere around an hour.

That said, a meta-analysis pooling data from multiple studies painted a somewhat different picture for robotic surgery, finding overall operative times of about 160 minutes for robotic repairs versus 90 minutes for laparoscopic ones. When the comparison was narrowed to unilateral repairs only, the gap shrank to about 88 versus 68 minutes.² The inflated overall numbers likely reflect the inclusion of early-adoption cases, when surgeons were still learning the robotic platform. Once surgeons move past their learning curve, robotic times can actually dip below laparoscopic times. One study found that after the learning phase, median robotic operative time was 59 minutes compared to 65 for laparoscopic.³

Umbilical and Ventral Hernias Have a Wider Time Range

Umbilical and paraumbilical hernias are the second most common type and are often smaller repairs. A systematic review and meta-analysis comparing open and laparoscopic approaches found that open umbilical hernia repair took about 23 minutes less operating time on average than the laparoscopic approach.⁴ That shorter operative time for the open technique comes with a trade-off, though: the same analysis found higher rates of wound infection, wound separation, and hernia recurrence with the open method. So a bit of extra time in the OR for the laparoscopic approach may pay off in the weeks after surgery.

Ventral and incisional hernias are a different story altogether. These develop through the abdominal wall, often at the site of a previous surgical incision, and they can be far more complex to repair. A study of laparoscopic ventral hernia repairs found a mean operative time of about 132 minutes, with a range stretching from under an hour all the way to nearly seven hours. Patients whose surgery exceeded two hours were more likely to have multiple hernias, defects larger than about 40 square centimeters, or a history of a hernia coming back after a previous repair.⁵ If your surgeon describes your ventral hernia as “complex,” expect the procedure to sit on the longer end of that range.

Bilateral Repairs Add Time, But Not as Much as You’d Think

When hernias appear on both sides of the groin, surgeons often repair both during the same operation. A bilateral repair does take longer, but the added time isn’t simply double. One study found that unilateral laparoscopic inguinal hernia repair averaged about 66 minutes, while bilateral repair averaged about 87 minutes, an increase of roughly 21 minutes or about a third more time.⁶ The reason is that once the surgeon has already created the working space and set up the instruments, adding the second side is faster than starting from scratch.

A separate analysis confirmed a similar pattern across all three approaches: open bilateral inguinal repairs had a median time of 104 minutes, laparoscopic 101 minutes, and robotic 88 minutes.¹ Robotic surgery showed the biggest advantage in bilateral cases, where the precision of the robotic arms seems to speed up the second-side dissection. The meta-analysis of robotic versus laparoscopic repairs found no significant time difference for bilateral procedures specifically (about 111 versus 100 minutes).²

How Body Weight Affects Operating Time

Obesity tends to make hernia repairs more technically demanding. A thicker abdominal wall means more tissue to work through, potentially obscured landmarks, and more challenging mesh placement. For incisional hernia repairs, one prospective study found that surgery averaged about 82 minutes in non-obese patients but about 98 minutes in patients with a BMI of 30 or higher. The difference was particularly pronounced in open repairs using the sublay technique.⁷

For inguinal hernia repairs, the picture is less clear-cut. A retrospective analysis of laparoscopic inguinal hernia repairs found operative times of about 79 minutes in obese patients versus 70 minutes in non-obese patients, a gap that wasn’t statistically significant.⁸ Another study looking at a different laparoscopic technique did find a link between higher BMI and longer surgery, but mainly in a surgeon’s early cases. As the surgeon gained experience, the BMI effect faded.⁹ The takeaway is that obesity has a more consistent time impact on larger abdominal wall repairs than on simpler groin hernia fixes.

Anesthesia Choice Affects Your Total Time in the Operating Room

Operating time and total time in the OR are two different numbers, and the type of anesthesia you receive affects both. For open inguinal hernia repair, local anesthesia was associated with about a 13% decrease in operative time and about a 27% shorter recovery room stay compared to general anesthesia.¹⁰ Part of the time savings comes from not needing to intubate and then wake the patient, and part seems to come from the operation itself going faster when the tissue isn’t as relaxed or swollen from general anesthesia’s effects.

A randomized trial comparing local, spinal, and general anesthesia for open hernia repair found similar results: although the actual duration of the surgical procedure was slightly longer under local anesthesia, the total time from entering the operating room to leaving it was significantly shorter than with spinal or general anesthesia.¹¹ Another randomized trial confirmed that general anesthesia was associated with the longest operative time and the longest total time in the operating theater.¹² If you’re having an open repair and your surgeon offers local anesthesia as an option, it’s worth considering for the faster turnaround alone, though not every repair is suited to local anesthesia and laparoscopic or robotic operations require general anesthesia.

Your Surgeon’s Experience Has a Measurable Effect on Duration

Surgical learning curves are real and quantifiable. One study examined the learning curve for robotic inguinal hernia repair and found that the learning phase lasted about 29 cases, after which median operative time dropped and stabilized. The comparable laparoscopic learning curve took about 39 cases to reach the same plateau.³ Another study found that a surgeon already experienced with other robotic procedures reached competency in robotic hernia repair by about the 20th case, while a less experienced surgeon showed a more uneven four-phase learning curve with greater variability in operative times.¹³

Research into learning curves for robotic ventral hernia repair tells a similar story. Surgeons needed about 16 to 19 robotic cases before their reoperation rates matched those of established laparoscopic and open techniques.¹⁴ The practical implication: a high-volume hernia surgeon who has performed hundreds of procedures will likely finish your operation faster and with fewer complications than someone doing these cases occasionally. It’s a reasonable question to ask your surgeon, especially if robotic repair is being offered.

Prior surgical experience with other procedures matters too. Surgeons who already had extensive robotic experience from other operation types demonstrated a smoother, two-phase learning curve when transitioning to robotic hernia repair, while less experienced surgeons showed a longer, more variable trajectory.¹⁵

What “Operating Time” Doesn’t Include

When studies report operative time, they typically mean skin-to-skin or port-insertion-to-closure time. That number doesn’t capture everything between when you arrive in the surgical suite and when you’re wheeled to recovery. Before the actual surgery begins, there’s anesthesia induction (anywhere from a few minutes for local anesthesia to 15 to 20 minutes for general), patient positioning, sterile draping, a surgical time-out safety check, and equipment setup. For robotic procedures, docking the robot to the patient adds another few minutes. After the surgery ends, there’s wound closure if not included in the reported time, removal of drapes and ports, reversal of anesthesia, and a brief assessment before transfer.

For a typical inguinal hernia repair with a reported operative time of about an hour, you can reasonably expect to be in the operating room for about an hour and a half to two hours total. The recovery room adds another one to three hours. So from the moment you’re wheeled away from your family to when they can see you again, three to four hours is a common window for a straightforward case.

Pediatric Hernia Repairs Are Considerably Shorter

Children’s hernia repairs tend to be faster than adults’ because the anatomy is smaller, the tissue is less scarred, and the defects are usually congenital rather than wear-and-tear related. One study of laparoscopic inguinal hernia repair in children found a mean operating time of just 25 minutes, with unilateral repairs ranging from 21 to 35 minutes and bilateral repairs from 28 to 50 minutes.¹⁶ Pediatric repairs typically use a simpler technique of closing the hernia ring rather than placing mesh, which accounts for much of the time savings. Parents can generally expect the actual surgical portion to be over in under an hour, and often in half that.

When Another Procedure Is Done at the Same Time

Sometimes surgeons will address two problems during the same trip to the operating room, particularly when a patient needs both a hernia repair and another abdominal procedure like gallbladder removal. A systematic review of combined laparoscopic cholecystectomy and inguinal hernia repair found that the total operative time for both procedures ranged from 55 to 157 minutes, with hospital stays of one to four days.¹⁷ The combined time is generally less than the sum of two separate operations because setup, anesthesia induction, and port placement happen only once. If your surgeon suggests combining procedures, the added time for the hernia repair portion is typically modest, and you avoid a second round of anesthesia and recovery.

Emergency Hernia Repairs

An incarcerated hernia, where tissue gets trapped and can’t be pushed back in, or a strangulated hernia, where the blood supply to the trapped tissue is cut off, requires urgent surgery. These operations tend to be more technically challenging because the tissue is inflamed, swollen, and sometimes necrotic, meaning the surgeon may need to remove a section of bowel in addition to repairing the hernia. While published data on precise operative times for emergency repairs are limited, surgeons generally expect these cases to run longer than elective repairs of similar hernias because of the added complexity and the need for careful inspection of bowel viability.¹⁸

The unpredictable nature of what the surgeon will find also makes these cases harder to give a time estimate for. A hernia that’s simply incarcerated but with healthy tissue underneath might add only 15 to 30 minutes beyond a standard repair. A strangulated hernia requiring bowel resection and potentially a temporary ostomy could push the procedure to several hours. This is one of the reasons surgeons recommend elective repair of reducible hernias before they become emergencies.

A Quick Reference by Hernia Type and Approach

Pulling together the research, here’s a rough guide to expected operative times for the most common scenarios:

Inguinal, unilateral, open: about 60 to 65 minutes
Inguinal, unilateral, laparoscopic or robotic: about 60 to 90 minutes (shorter after the surgeon’s learning curve)
Inguinal, bilateral, any approach: about 85 to 105 minutes
Umbilical, open: roughly 30 to 60 minutes for uncomplicated cases
Umbilical, laparoscopic: about 20 to 25 minutes longer than open
Ventral or incisional, laparoscopic: about 130 minutes on average, but ranges widely from under an hour to over four hours depending on defect size
Pediatric inguinal: about 20 to 35 minutes unilateral, 30 to 50 minutes bilateral

These are operative times only. Add 30 to 60 minutes for anesthesia and setup to estimate your full OR time, and another one to three hours in the recovery room before you’re ready to go home or back to a hospital room.

Open Versus Laparoscopic Versus Robotic for Time Alone

If your main concern is spending as little time in surgery as possible, the choice of approach may matter less than you’d expect for inguinal hernias. Contemporary data show that all three approaches cluster around the same operative time for unilateral repairs once the surgeon is past the learning curve.¹ For bilateral inguinal hernias, robotic repair may have a slight speed advantage. For umbilical hernias, open repair is faster in the OR but carries higher complication rates.⁴ For large ventral and incisional hernias, the choice depends more on the hernia’s complexity than on any inherent speed difference between techniques.

Operative time is just one factor among many. A procedure that takes 20 minutes longer but produces less postoperative pain, a quicker return to work, and lower recurrence rates is the better option for most people. Discuss your priorities with your surgeon, and ask not just how long the surgery will take, but how the recovery timeline differs between the approaches being considered.