Surgical Risks: Common Complications and How to Avoid Them

Complications can arise during the operation (intraoperative) or during the healing phase (postoperative). While generic risks like anesthesia reactions apply to almost all surgeries, specific procedures carry unique profiles.

1. Surgical Site Infections (SSIs)

Infections remain one of the most common challenges in the recovery room. They occur when bacteria enter the incision site. While many are superficial and easily treated with antibiotics, deep infections can lead to tissue loss or systemic illness. As we detailed in our guide on the Common Complications of Surgical Wound Infections, persistent redness, warmth, and unusual discharge are primary warning signs that require immediate medical attention.

2. Hematoma and Seroma

A hematoma is a localized collection of blood outside blood vessels, often appearing as a painful, hard swelling or bruise [2]. A seroma is a similar collection of sterile fluid. In procedures like abdominoplasty or breast augmentation, these are common but manageable risks. In a study of 221,584 aesthetic surgery patients in the TOPS database of the American Society of Plastic Surgeons, hematoma occurred in 0.7% and seroma in 1.1% [1].

3. Blood Clots (DVT and PE)

Deep Vein Thrombosis (DVT) occurs when a blood clot forms in a deep vein, usually in the legs. If the clot travels to the lungs, it becomes a Pulmonary Embolism (PE), which is a life-threatening emergency. Major surgery and immobility raise the risk [7]; in the TOPS study, DVT or PE occurred in 0.1% of aesthetic surgery patients [1].

4. Anesthesia Complications

Modern anesthesia is very safe, but complications such as breathing problems during the procedure remain among the risks of surgery [3], and nausea or shivering afterwards are common. For older patients, these risks require even more careful management; you can learn more about these specific vulnerabilities in our article on Geriatric Surgery: Risks and Considerations for Older Adults.

Prevention starts long before the first incision and continues until the final follow-up.

Choose a Board-Certified Surgeon

You are more likely to have a good outcome with a surgeon who has specialized training and experience in the procedure you need, and board-certified surgeons, who must pass rigorous training and examinations, are an ideal choice [3]. Verify that they operate in accredited facilities that maintain rigorous safety standards and emergency protocols.

Optimize Your Health Pre-Surgery

Your lifestyle choices directly impact your body’s ability to heal.

• Stop Smoking: Nicotine constricts blood vessels, and smokers have more surgical site infections and wound-healing problems; ASPS recommends stopping 4 to 8 weeks before surgery, depending on your health and the procedure [8].

• Manage Chronic Conditions: In the TOPS study, older age, diabetes, a higher BMI and a higher anesthesia risk class were linked to more unplanned readmissions, emergency visits and reoperations [1].

• Medication Review: Discuss all supplements and medications with your doctor. Common items like aspirin, vitamin E and some herbal supplements can increase bleeding risks.

Adhere to Postoperative Protocols

Following your home-care instructions closely lowers the risk of complications [3].

• Movement: Early, light walking is essential to prevent blood clots.

• Compression: Wear surgical garments as directed to minimize seroma formation.

• Hygiene: Follow specific wound care instructions to prevent SSIs.

In the medical field, not all errors are equal. A “surgical error” is defined as an unintentional, preventable injury occurring in the perioperative period that is not a known acceptable risk of the procedure [4]. According to the Agency for Healthcare Research and Quality, the most high-profile errors fall into the category of WSPEs (Wrong-Site, Wrong-Procedure, and Wrong-Patient Errors).

The most frequent types of surgical never events include:

• Wrong-Site Surgery: Operating on the left knee instead of the right, or the wrong level of the spine.

• Unintended Retention of Foreign Objects (URFO): Leaving sponges, needles, or instrument fragments inside a patient. Sponges account for approximately 35% of these cases [5].

• Incorrect Implants: Using the wrong size or model of a prosthetic joint or intraocular lens.

Wrong-site, wrong-procedure and wrong-patient errors are rare: a seminal study estimated about 1 in every 112,000 operating-room procedures, so a single hospital might see one every 5 to 10 years. Preventing them depends on system safeguards, teamwork and a safety culture, and individual vigilance [6].

Not every complication is medical: not getting the result you expected is one of the main risks of plastic surgery, along with nerve damage and abnormal scarring [3]. In the Tracking Operations and Outcomes for Plastic Surgeons (TOPS) study, combined procedures, longer operating times and abdominoplasty were linked to more unplanned readmissions, emergency visits and reoperations [1]. Patients are encouraged to prioritize safety over convenience when planning several procedures.

Core Principles

• Low Incidence, High Impact: While complications are rare (0.05% to 1.1% for the problems measured in a large aesthetic surgery study), they require immediate attention when they occur.
• Prevention is Proactive: Most surgical risks are mitigated through patient preparation and choosing qualified providers.
• Communication is Critical: Constant dialogue with your surgical team regarding your history and symptoms is the best defense against escalating minor issues into major ones.

Action Plan

1. Veteran Vetting: Confirm your surgeon is board-certified and has no significant history of malpractice.
2. Lifestyle Audit: Quit smoking 4 to 8 weeks before the procedure, as ASPS recommends, and get chronic conditions such as diabetes under control.
3. Know the Warning Signs: Contact your surgeon promptly for fever or yellowish discharge from the incision, blood-soaked dressings, pain your medication does not control, or swelling in one leg [3]; get emergency help at once for sudden shortness of breath or chest pain [7].
4. Follow the Script: Do not deviate from the postoperative activity restrictions, even if you “feel fine.”

Surgery is a collaborative effort between the medical team and the patient. By staying informed and disciplined, you can transition from the operating room to a successful recovery with confidence.