Hypergranulation is an overgrowth of the soft, bumpy tissue your body normally builds to repair a wound. During healing, your body fills open wounds with granulation tissue, a mix of new blood vessels, connective tissue cells, and immune cells that acts as a scaffold for skin to grow across. Hypergranulation happens when this process overshoots, producing a raised mound of tissue that rises above the surrounding skin and actually blocks the wound from closing.
Sometimes called “proud flesh” or overgranulation, this tissue isn’t dangerous on its own, but it stalls healing and can become a source of ongoing irritation, bleeding, and frustration if left unmanaged.
What Hypergranulation Looks Like
Hypergranulation tissue is typically red, shiny, and soft, sitting visibly higher than the skin around it. It bleeds easily when touched or bumped because it’s packed with fragile new capillaries. The surface often looks moist and slightly glossy. Unlike a scab or scar, which feel firm, hypergranulation tissue has a spongy quality.
The key feature is elevation: normal granulation tissue fills a wound bed up to the level of the surrounding skin, then stops so new skin cells can migrate across the surface. Hypergranulation tissue keeps growing past that point, forming a raised mass that physically prevents skin from covering the wound. This is why wounds with hypergranulation seem stuck, neither getting worse nor actually closing.
Why It Happens
Wound healing depends on a carefully timed sequence of inflammation, tissue building, and remodeling. Hypergranulation occurs when the tissue-building phase doesn’t shut off on cue. Several things can throw off that timing:
- Infection. Bacteria in the wound trigger a heavy immune response, pulling in excessive inflammatory cells that keep signaling for more tissue growth.
- Excess moisture. A wound bed that stays too wet can overstimulate the cells responsible for building granulation tissue. Dressings that trap moisture against the wound without adequate absorption are a common culprit.
- Foreign material. Sutures, feeding tubes, or debris in the wound can provoke a chronic inflammatory reaction, driving continuous tissue production.
- Friction or pressure. Repeated rubbing from a dressing, clothing, or a medical device like a gastrostomy tube irritates the wound and keeps the healing process in overdrive.
Hypergranulation is especially common around tube sites (feeding tubes, tracheostomy tubes) because these create a wound that never fully closes while the tube is in place, and the tube itself causes ongoing mechanical irritation.
How It Differs From Something More Serious
In rare cases, what looks like hypergranulation is actually a sign of malignancy, a cancerous change in the wound tissue. Knowing the differences matters. An Oxford Health clinical pathway identifies several red flags that suggest a wound should be evaluated by a dermatologist rather than treated as routine overgranulation:
- The tissue is irregular in shape rather than uniformly rounded
- It has a cauliflower-like appearance
- It feels hard or firm to the touch, not soft and spongy
- It grows outward beyond the original wound edges
- It has been present for many months without improvement
- It does not respond to standard treatments
Typical hypergranulation tissue is soft, stays within the wound boundaries, and responds to treatment within days to weeks. If the tissue doesn’t fit that pattern, it warrants a biopsy.
Treatment Options
The goal of treatment is to flatten the tissue back to the level of the surrounding skin so the wound can resume normal closure. The approach depends on the size of the overgrowth and what’s causing it.
Addressing the Underlying Cause
Before treating the tissue itself, it helps to remove whatever triggered it. If a dressing is holding too much moisture against the wound, switching to a foam dressing that absorbs and controls fluid levels can make a significant difference on its own. If a tube or device is rubbing the area, repositioning or padding it reduces the irritation driving the overgrowth. Infected wounds need the infection treated first.
Silver Nitrate
Chemical cautery with silver nitrate sticks is one of the most common treatments. These are wooden sticks tipped with a mixture of 75% silver nitrate and 25% potassium nitrate. When applied to the tissue, they chemically burn back the excess growth. The sticks are typically applied daily or at each dressing change until the tissue is level with the surrounding skin, for up to 14 days. The application stings briefly but is generally well tolerated.
Topical Steroids
Steroid creams or ointments applied directly to the tissue can suppress the inflammatory signals that fuel overgrowth. This approach is particularly useful for wounds where the tissue is not infected but simply overreacting. Steroid dressings have been used successfully in burn wounds and around tube sites.
Foam Dressings and Moisture Control
Foam dressings serve double duty: they absorb excess wound fluid to correct the moist environment that encourages overgrowth, and they apply gentle, even pressure to the raised tissue. A good foam dressing absorbs and retains fluid, prevents the surrounding skin from becoming waterlogged, and stays in place for up to seven days without damaging new tissue when removed. Some foam dressings are specifically designed for wounds prone to hypergranulation.
Salt-Based Treatment
A simpler home-friendly option involves creating a hypertonic (high-salt) environment around the tissue. Salt draws fluid out of the swollen, waterlogged tissue, reducing its bulk. This approach is inexpensive and straightforward enough to use outside a clinical setting.
Surgical or Laser Options
When conservative treatments don’t work, the tissue can be physically removed through surgical debridement, where a clinician trims or scrapes the excess tissue under local or general anesthesia. Pulsed dye laser treatment is another option, sometimes combined with specialized dressings. These more intensive approaches are reserved for stubborn cases that haven’t responded to weeks of standard care.
Recovery and What to Expect
Most hypergranulation responds to treatment within one to two weeks, especially when the underlying cause (moisture imbalance, friction, infection) is corrected at the same time. After the tissue flattens to skin level, normal wound healing resumes: skin cells migrate across the granulation bed, and the wound gradually closes.
Recurrence is possible, particularly around tube sites or in wounds that remain open long-term. Keeping the wound appropriately moist (not too wet, not too dry), minimizing friction, and using well-fitted dressings are the most practical ways to prevent it from coming back. If hypergranulation keeps returning despite good wound care, that persistent behavior is worth bringing to a clinician’s attention, both to rule out other diagnoses and to explore more targeted treatment.