At a glance

ERAS ("Enhanced Recovery After Surgery") is a comprehensive set of evidence-based practices that make recovery after bowel surgery faster and safer. In practice, it translates into minimally invasive surgery, early mobilisation and feeding, opioid-sparing pain control, and avoiding unnecessary tubes and drains. The benefit to the patient is clear: fewer complications and a shorter hospital stay, with no compromise in safety.

Medically reviewed by Dr Menelaos Zoulamoglou, MD, MSc·

In the past, bowel surgery meant several days of fasting, a nasogastric tube, confinement to bed and a prolonged hospital stay. Today the picture has changed dramatically: patients not uncommonly walk and eat within the first twenty-four hours. This shift is no accident — it is the fruit of an evidence-based protocol known as ERAS. Here's what it means for you.

What "enhanced recovery" (ERAS) is

ERAS is not a single trick but a comprehensive, whole-pathway approach that combines dozens of individual, evidence-based improvements across three phases: before, during and after surgery. The shared goal is to reduce the "stress" that the operation places on the body, so it can regain normal function as quickly and safely as possible.

Why you're up and eating early

Two of the seemingly most paradoxical elements of ERAS — early mobilisation and early feeding — are at the same time among the most essential:

  • Early mobilisation: getting up and walking a few hours after the operation reduces chest complications, the risk of venous thrombosis in the legs, and bowel paralysis (postoperative ileus). Far from being a risk, it is part of the treatment itself.
  • Early feeding: taking fluids and light food as early as the same or the next day helps the bowel regain its function sooner. Contrary to the older belief, early feeding does not increase complications — it reduces them.

Before surgery: preparation

Recovery begins before you even enter the operating room:

  • Education & expectations: when you know in advance what will happen and what your own role is, recovery unfolds more smoothly.
  • Prehabilitation: improving fitness and nutrition, treating any anaemia, and stopping smoking before the operation.
  • No prolonged fasting: modern programmes allow clear fluids until a few hours before the operation, and often a carbohydrate drink — so you enter surgery hydrated and with adequate energy reserves, rather than depleted by fasting.

During surgery: a minimally invasive approach & careful management

During the operation, a host of choices influence the course of recovery:

  • Minimally invasive surgerylaparoscopic or robotic, where feasible, with smaller incisions, milder pain and faster mobilisation.
  • Opioid-sparing pain control — a combination of techniques that controls pain effectively while reducing the side-effects of opioids (nausea, constipation, bowel paralysis).
  • Balanced fluid management and keeping the body's temperature within normal limits.
  • Avoiding unnecessary tubes & drains — limiting the routine use of nasogastric tubes and drains translates into greater comfort and faster mobilisation.

After surgery: what to expect day by day

Every operation and every patient is different; nevertheless, a typical recovery path looks something like this:

  • Day of surgery: small sips of fluid, transfer to a chair, and often the first steps with support.
  • Day 1: light eating, walking in the corridor, removal of the urinary catheter, and a gradual reduction of intravenous fluids.
  • Days 2–3: a progressive increase in diet and activity, with the return of bowel function (gas, then motions).
  • Discharge: given when you are eating, moving, your pain is controlled with oral analgesia and your bowel function has returned — and not based on an arbitrary number of days.

Your role

In ERAS the patient is not a passive recipient but an active partner. What you do genuinely matters: move as guided, start eating, perform your breathing exercises, keep yourself hydrated, and report promptly anything that concerns you. If you have a stoma, learning to care for it is also part of recovery.

When recovery differs

ERAS is always individualised. The path may differ after emergency surgery, in more complex cancer operations (such as rectal cancer or cytoreduction & HIPEC), and in patients with other health problems. The goal remains the same — a safe, rapid recovery — but the pace is tailored to each individual patient.

The benefits

ERAS protocols have been associated with fewer complications, a faster return of bowel function, a shorter hospital stay and a quicker return to daily life — without increasing readmissions. In plain terms: you recover faster and more comfortably, while maintaining or even enhancing safety.

What is an ERAS protocol?

ERAS (Enhanced Recovery After Surgery) is a comprehensive set of evidence-based practices applied before, during and after surgery, with the aim of a faster and safer recovery. It includes early mobilisation and feeding, minimally invasive surgery, opioid-sparing pain control, and avoiding unnecessary tubes and drains.

Why am I made to get out of bed so soon?

Early mobilisation reduces chest complications, venous thrombosis in the legs and bowel paralysis, and speeds the return to normal function. Walking a few hours after the operation is safe and beneficial — and not dangerous, as is often believed.

When will I be able to eat after the operation?

In most modern programmes, patients take fluids and light food as early as the same or the next day after surgery. Early feeding helps the bowel regain its function sooner and does not increase complications.

How long will I stay in hospital after bowel surgery?

It depends on the type of operation and on the individual patient; with minimally invasive surgery and an ERAS protocol, however, the stay is usually noticeably shorter than in the past. You are discharged when you are eating, moving, your pain is controlled with oral analgesia, and your bowel function has returned.

What can I do to recover faster?

Quite a lot, in fact: improve your fitness and nutrition before surgery (prehabilitation), stop smoking, follow the instructions on fluids and the carbohydrate drink, and after the operation move, eat and perform your breathing exercises according to the guidance you are given.