Incisional hernia

Incisional hernia surgery in San Pedro Sula

The hernia that appears over a previous scar: why it demands more planning and how it is approached.

01 — What it is

Incisional hernia: when the scar gives way

An incisional hernia is one that appears over the scar of a previous abdominal operation. The wall was weakened where it was opened and closed, and over time it gives way.

It is a frequent complication of abdominal incisions, and it is not the patient's fault. Surgical closure technique is a recognised risk factor for its development, which is why surgical societies have published specific guidelines on how to close a laparotomy in order to reduce its incidence.

Symptoms of incisional hernia

Clinical basis: The updated European Hernia Society and American Hernia Society guideline on closure of abdominal wall incisions identifies surgical technique as a modifiable risk factor and recommends, for elective midline laparotomy closure, a continuous small-bites suturing technique with slowly absorbable suture; it also considers prophylactic mesh augmentation in selected cases. Deerenberg EB, et al. Updated guideline for closure of abdominal wall incisions from the European and American Hernia Societies. Br J Surg. 2022;109(12):1239-1250.
Diagram showing where each type of abdominal wall hernia appears Epigastric Umbilical Incisional over a previous scar Inguinal Femoral below the inguinal ligament Orientation diagram — does not replace clinical evaluation
An incisional hernia appears over the scar of a previous operation. Shown here over a midline incision, the most common location.
02 — When to operate

Preoperative assessment matters more here than in other hernias

An incisional hernia is not repaired "like the others". It demands the most planning, because the ground has already been operated on: there is scar tissue, sometimes previous mesh, and occasionally several interventions layered on top.

Not every incisional hernia needs immediate surgery, but not every wait is safe either. If it is symptomatic — it hurts, bothers you, or grows noticeably — the general indication is to repair it, to relieve the symptom and prevent it from progressing to a complication. If it is small and causes no symptoms, it can reasonably be observed, although the risk of a complication while waiting is not zero. The final decision weighs defect size, symptoms, the individual patient's risk, and their preference — it is not a one-size-fits-all rule.

Before indicating surgery we assess the size and location of the defect, whether there is loss of domain — when the contents no longer fit comfortably in the abdomen — the condition of the skin over the hernia, and the patient factors that can be optimised beforehand: glycaemic control, weight, smoking. Optimising first is not delay for its own sake; it improves the result and lowers the risk of failing again.

Large or complex defects may require planning with imaging and component separation techniques. That conversation happens with the specific case, not with generalities.

Clinical basis: The indication to repair a large or symptomatic hernia, versus observing a small, asymptomatic hernia — with a complication risk described in some series at roughly 2.6% per year of watchful waiting, and a tendency for the defect to enlarge over time — is documented in the standard surgical reference literature on incisional hernia. Incisional Hernia. StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; National Library of Medicine, NCBI Bookshelf.
03 — Technique and mesh

Repair: always reinforced

Incisional hernia repair is performed almost always with mesh. Closing with sutures alone a wall that has already shown it gives way carries unacceptable recurrence rates.

What is decided case by case is the approach — open or minimally invasive — the plane where the mesh is placed, the type of material, and whether some wall reconstruction technique is required to achieve tension-free closure.

04 — Recovery

A more structured recovery

Recovery after incisional repair is usually longer than after an inguinal or umbilical hernia, and depends above all on defect size and the complexity of the reconstruction.

Postoperative follow-up and respecting effort restrictions are part of the result, not an optional recommendation: a good share of early recurrences relate to premature return to heavy strain.

Looking for a herniated disc or spinal hernia? That is a different problem: it involves an intervertebral disc and is managed by a neurosurgeon or a spine surgeon. This practice treats abdominal wall hernias — groin, navel, previous surgical scars — which involve entirely different tissue and surgery. If your pain is in your back or radiates down your leg, this is not the specialist you need, and it's better to know that before booking.
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