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Surgery
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Surgery Rehabilitation

Surgery

Surgery is performed for a variety of reasons, ranging from diagnosing medical conditions to life-saving interventions, though it carries inherent risks.

Overview

There are many reasons to have surgery. Some operations can relieve or prevent pain. Others can reduce a symptom of a problem or improve some body function. Some surgeries are done to find a problem. For example, a surgeon may do a biopsy, which involves removing a piece of tissue to examine under a microscope. Some surgeries, like heart surgery, can save your life.

Techniques

Some operations that once needed large incisions (cuts in the body) can now be done using much smaller cuts. This is called laparoscopic surgery. Surgeons insert a thin tube with a camera to see, and use small tools to do the surgery.

Risks and Complications

After surgery there can be a risk of complications, including:

  • Infection
  • Too much bleeding
  • Reaction to anesthesia
  • Accidental injury

There is almost always some pain with surgery.

Source: Agency for Healthcare Research and Quality

Frequently Asked Questions

Recovery times vary significantly depending on the type of procedure, your age, and overall health. Minor laparoscopic surgeries may require only a few days of rest, while major open surgeries can take several weeks or even months to fully heal. Factors such as the presence of chronic conditions like diabetes, smoking status, and adherence to post-operative care instructions also play a critical role in how quickly you return to normal activities. Always follow your surgeon's specific discharge instructions regarding activity restrictions and follow-up appointments.
While some redness and mild swelling are normal, you should seek immediate care if you notice increasing pain, warmth, or redness spreading from the incision site. Other critical signs include the presence of pus or foul-smelling drainage, a fever higher than 101 degrees Fahrenheit (38.3 degrees Celsius), or chills. Do not wait for a scheduled follow-up if these symptoms appear, as early treatment is essential to prevent the infection from spreading to the bloodstream or deeper tissues.
Preparation involves both medical and logistical steps. Medically, follow all fasting guidelines strictly to prevent anesthesia complications, and inform your healthcare provider about all medications, supplements, and allergies. Logistically, arrange for a caregiver to stay with you for at least 24 to 48 hours after discharge, as you will not be able to drive or make complex decisions. Prepare your home by removing tripping hazards, setting up a comfortable recovery area with necessary supplies within arm's reach, and stocking up on easy-to-prepare meals to reduce stress during the initial healing phase.
It is generally unsafe to resume intense physical exercise immediately after surgery. Your surgeon will provide a specific timeline for when you can begin light activities, such as walking, which helps prevent blood clots and promotes circulation. You must gradually increase intensity and duration only as approved by your medical team. Returning to heavy lifting or high-impact sports too early can strain healing tissues, reopen incisions, or cause internal complications. Always get clearance from your surgeon before resuming your pre-surgery fitness routine.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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