A non-healing surgical wound is a condition in which a surgical incision does not close within the expected time or reopens after it has closed. Infection, poor circulation, nutritional problems, and tension along the incision line are among the main causes. Identifying the correct cause determines the direction of treatment.
How Does a Surgical Wound Normally Heal?
A healthy incision is cleared through an inflammatory response during the first days after surgery, after which new tissue forms and the surface generally closes within about two weeks. It can take several months for the tissue to regain strength approaching its previous level.
When this process does not progress as expected, the wound may remain red, drainage may continue, the incision may separate, or an area that had closed may reopen. In this situation, the wound should not be evaluated only locally; the patient as a whole also needs to be assessed.
Why Does a Surgical Wound Fail to Heal?
Infection
This is one of the most common causes. It may present with redness, increased warmth, pain, drainage, and fever. Infection may remain superficial or progress into deeper tissues and cause separation of the incision.
Poor Circulation
If adequate blood does not reach the incision area, the oxygen and nutrients needed for healing cannot be supplied. This is a common problem after leg surgery in patients who also have arterial disease.
Poor Nutrition
Deficiency of protein, vitamin C, and zinc can directly impair tissue formation. Healing may be significantly delayed in patients who were poorly nourished before surgery or are unable to maintain adequate nutrition afterward.
Coexisting Diseases and Medications
Diabetes, kidney failure, liver disease, and conditions that suppress the immune system can slow healing. Corticosteroids, certain chemotherapy drugs, and immunosuppressive treatments may have a similar effect.
Mechanical Causes
Excessive tension on the incision, weight or pressure on the area, and conditions that raise intra-abdominal pressure such as coughing and constipation can predispose the wound to open. Blood or fluid accumulating beneath the wound can also interfere with healing.
Smoking
Smoking constricts small blood vessels, reduces blood flow to the wound area, and is one of the most important modifiable factors that negatively affects healing.
Warning Signs
- Increasing redness, swelling, and pain after the fifth postoperative day
- Cloudy or foul-smelling drainage from the incision
- Separation or opening of the incision
- Fever and chills
- Hardness or a fluid collection around the wound
- Color change, bruising, or blackening of the wound edges
- Reopening of a wound that had previously closed
Diagnostic Process
- Wound examination: Evaluation of depth, the degree of separation, and tissue viability
- Wound culture: Identification of the causative organism and appropriate antibiotic
- Blood tests: Infection markers, blood glucose, albumin, and complete blood count
- Vascular assessment: Doppler evaluation, particularly for wounds on the legs
- Imaging: Ultrasonography, CT, or MRI when a deep collection or bone involvement is suspected
Treatment of Non-Healing Surgical Wounds
Controlling Infection
Any collection of pus is drained, and sutures may be opened when necessary to allow adequate drainage. Appropriate antibiotic therapy is selected according to culture results.
Debridement and Wound Care
Nonviable tissue is removed. As the wound bed becomes clean, dressings are selected according to the amount of drainage and other wound characteristics.
Negative Pressure Wound Therapy
This is one of the methods frequently used to prepare the wound bed in large or deep wound separations. It helps reduce drainage and supports tissue recovery.
Correcting the Underlying Problem
Blood sugar control, nutritional support, smoking cessation, and treatment of circulatory problems are integral parts of care. If these steps are overlooked, local wound care alone is unlikely to be sufficient.
Surgical Closure of the Wound
Once the wound has been cleaned and the wound bed is suitable, closure with secondary suturing, a graft, or a flap may be considered. Timing is determined according to the condition of the wound.
Recommendations to Support Healing
- Keep the wound area clean and follow dressing instructions
- Maintain a balanced diet with adequate protein
- Do not neglect blood sugar monitoring
- Stop smoking
- Support the abdominal area when coughing after abdominal surgery
- Avoid constipation
- Avoid heavy lifting and strenuous movements
- Seek evaluation promptly if fever, increasing pain, or drainage develops
Specialist Evaluation of Non-Healing Surgical Wounds
A wound that opens after surgery is often not caused by a single factor but by several factors occurring together. Prof. Dr. Emre Özker evaluates infection, circulation, and nutrition together when planning treatment for non-healing surgical wounds. The process and expectations are discussed openly with the patient; healing time can vary from person to person.
Grading of Wound Dehiscence
Opening of a surgical wound does not always have the same severity. An important part of assessment is determining how deeply the separation extends.
- Superficial separation: Involves only the skin and subcutaneous tissue and can often be managed with local care
- Deep separation: Extends to the muscle and fascial layers and may require surgical intervention
- Full-thickness separation: A condition that can expose internal organs after abdominal surgery and requires urgent evaluation
This distinction helps determine whether treatment can continue in an outpatient setting or requires an operating-room environment.
Measures That Can Be Taken Before Surgery
Some healing problems can be reduced through measures taken before surgery. In planned operations, the following are particularly important:
- Bringing blood sugar into the target range before surgery
- Assessing nutritional status and providing support when necessary
- Stopping smoking for an appropriate period before surgery
- Treating anemia if present
- Assessing circulation in advance before leg surgery
- Reviewing immunosuppressive medications together with the treating physician
- Treating skin infections before surgery
Special Considerations in Abdominal Wall Dehiscence
After abdominal surgery, controlling factors that increase intra-abdominal pressure is particularly important when wound separation occurs. Severe coughing, constipation, and straining to urinate can place additional stress on the suture line.
Patients may be advised to support the abdomen with a hand or pillow while coughing, prevent constipation, and avoid heavy lifting. Development of an incisional hernia is a possible late complication and requires ongoing follow-up.
Monitoring the Healing Process
Measurement and documentation are important when following an open surgical wound. At each visit, the size and depth of the wound, the color of the wound bed, and the amount of drainage are assessed. Increasing pink-red granulation tissue in the wound bed is generally a sign of favorable progress.
If the expected reduction in wound size is not achieved after a certain period, infection, circulation, nutrition, and underlying diseases are reassessed. The possibility of inflammation caused by a retained foreign body or suture material beneath the wound may also be investigated.
Scar Management
Scarring may be more pronounced in wounds that close by secondary intention. After the wound has fully closed, moisturizing the area, protecting it from the sun, and using silicone-containing products when appropriate may help improve the appearance of the scar.
Additional treatments may be considered for raised and red scars. However, scar maturation takes months, so it is not appropriate to make a permanent judgment about the final appearance too early.
Frequently Asked Questions
Is drainage from my surgical wound normal?
A small amount of clear drainage may be expected during the first days. However, drainage that becomes cloudy or foul-smelling, or increases in amount, requires evaluation.
My stitches opened. Can the wound be sutured again?
Reclosure may be considered once the wound is clean and free of infection. Suturing an infected wound too early can cause the problem to recur.
Why has my wound remained open for months?
Persistent infection, poor circulation, uncontrolled blood sugar, nutritional deficiency, or a foreign body beneath the wound may lead to this situation. Detailed assessment is required to identify the cause.
Is it helpful to leave the wound open to the air?
No. Current wound-care approaches generally aim to maintain an appropriately moist wound environment. Healing may slow when the wound bed dries out excessively.
When should I seek urgent medical attention?
Prompt evaluation is required if fever, rapidly spreading redness, increasing severe pain, heavy foul-smelling drainage, or sudden opening of the wound develops.
When can my surgical wound get wet?
The timing depends on the type of surgery and the condition of the wound. Rather than following a general rule, you should follow the specific instructions provided by your physician. An open or draining wound should not be soaked.
Does wound separation always require surgery?
No. Many superficial separations can be managed with regular dressings and supportive treatment. Deep or full-thickness separation requires surgical assessment.
Is firmness around the wound normal?
Some firmness can occur during healing. However, increasing firmness, firmness accompanied by redness, or a palpable fluid collection should be evaluated.
When are my sutures removed?
Removal time varies according to the body area and the speed of healing. Sutures may be left in place longer in wounds that heal slowly. This decision should be made by your physician.
Should I take vitamins to help the wound heal?
Routine supplementation is not generally recommended unless a deficiency is identified. If poor nutrition, low protein levels, or a specific vitamin deficiency is found, supplementation may be recommended by the physician.
When can I start smoking again after surgery?
Smoking is one of the most important factors that negatively affects wound healing. Avoiding it until healing is complete and, ideally, stopping completely is recommended.
Should I keep a dressing on the wound all the time?
An appropriate dressing is necessary while the wound is open or draining. Once it has closed, the need for a covering usually decreases; this decision can be made during follow-up.
Is itching at the wound site a good sign?
Mild itching is common during healing and is often considered normal. However, if itching is accompanied by redness, raised areas, or drainage, assessment for an allergic reaction or infection may be needed.
