Healthy lifestyle and medical concept

Patient Education Guide

Understanding Chronic Wounds

A comprehensive guide to help you understand what chronic wounds are, why they happen, and how they can heal with proper treatment.

Evidence-Based
Expert Reviewed
Patient-Friendly

What is a Chronic Wound?

A chronic wound is any wound that has not healed within the expected timeframe—typically 4 to 12 weeks—despite receiving standard wound care treatment. Unlike acute wounds (cuts, scrapes, or surgical incisions) that heal predictably, chronic wounds become "stuck" in the healing process and may persist for months or even years without proper intervention.

Key Characteristics of Chronic Wounds

  • Delayed healing: Fails to progress through normal healing stages
  • Recurring: May heal but then reopens in the same location
  • Underlying conditions: Often associated with diabetes, poor circulation, or pressure
  • Increased infection risk: Open for extended periods, making infection more likely
  • Impacts quality of life: Can cause pain, mobility issues, and emotional distress

The Good News

While chronic wounds can be frustrating and challenging, most chronic wounds CAN heal with the right specialized treatment approach. Advanced wound care therapies and regenerative treatments have dramatically improved healing outcomes.

Common Types of Chronic Wounds

Chronic wounds can develop for various reasons. Understanding the type of wound helps determine the best treatment approach.

Diabetic Foot Ulcers

Open sores or wounds that develop on the feet of people with diabetes, often due to nerve damage (neuropathy) and poor circulation.

Common causes: Neuropathy, pressure, poor footwear

Risk factors: High blood sugar, smoking, foot deformities

Learn More

Venous Leg Ulcers

Wounds that occur on the lower legs when veins don't properly return blood to the heart, causing pooling and pressure buildup.

Common causes: Venous insufficiency, varicose veins

Risk factors: Age, obesity, previous blood clots

Learn More

Pressure Ulcers (Bedsores)

Wounds caused by prolonged pressure on the skin, typically over bony areas, cutting off blood flow to the tissue.

Common causes: Immobility, friction, moisture

Risk factors: Wheelchair/bedbound, malnutrition

Learn More

Arterial Ulcers

Wounds resulting from poor blood flow (arterial insufficiency), often affecting the feet, ankles, and lower legs.

Common causes: Peripheral artery disease, atherosclerosis

Risk factors: Smoking, diabetes, high cholesterol

Learn More

Non-Healing Surgical Wounds

Surgical incisions that fail to heal properly, becoming dehiscent (reopening) or developing complications.

Common causes: Infection, poor blood flow, diabetes

Risk factors: Obesity, malnutrition, smoking

Learn More

Traumatic Wounds

Injuries from accidents, burns, or trauma that fail to heal due to tissue damage, infection, or underlying health conditions.

Common causes: Severe tissue damage, burns, crush injuries

Risk factors: Infection, foreign bodies, poor circulation

Learn More

Why Don't Chronic Wounds Heal?

Normal wound healing progresses through predictable stages. Chronic wounds become "stuck" in one of these stages due to various factors that disrupt the healing process. Understanding these barriers is key to effective treatment.

Infection & Biofilm Formation

Chronic wounds often harbor bacterial biofilms—protective communities of bacteria that are resistant to antibiotics and the body's immune system. These biofilms prevent healing and must be physically removed through debridement.

Poor Blood Flow (Circulation)

Adequate blood flow delivers oxygen and nutrients essential for healing. Conditions like diabetes, peripheral artery disease, and venous insufficiency reduce circulation, starving wounds of what they need to heal.

Excessive Inflammation

While some inflammation is necessary for healing, chronic wounds often get stuck in a prolonged inflammatory state. This creates a hostile environment with destructive enzymes that break down healthy tissue faster than it can regenerate.

Dead Tissue (Necrosis)

Dead or damaged tissue (called slough or eschar) covers many chronic wounds, creating a barrier that prevents healthy tissue growth and provides a breeding ground for bacteria. This tissue must be removed through debridement.

Underlying Medical Conditions

Diabetes, autoimmune disorders, malnutrition, and other systemic conditions impair the body's natural healing mechanisms. Managing these conditions is essential for wound healing success.

Continued Pressure or Trauma

Ongoing pressure, friction, or repeated injury to the wound prevents healing. Offloading pressure (removing weight from the wound) and protecting the area are critical components of treatment.

The Four Stages of Normal Wound Healing

Understanding how wounds normally heal helps you recognize when a wound has become chronic and needs specialized care.

1

Hemostasis (Immediate Response)

Timeline: Seconds to minutes after injury

Blood vessels constrict and platelets form a clot to stop bleeding. This creates a temporary seal and releases growth factors that signal the next phase of healing to begin.

What you see: Bleeding stops, scab forms

2

Inflammation (Defensive Phase)

Timeline: 1-4 days after injury

White blood cells arrive to fight infection and clear debris. The wound area becomes red, warm, and swollen as immune cells work to clean the wound. This is a normal and necessary part of healing.

What you see: Redness, warmth, swelling, some clear or yellow drainage

3

Proliferation (Rebuilding Phase)

Timeline: 4 days to 3 weeks after injury

New tissue (granulation tissue) fills the wound bed. Blood vessels regrow, bringing oxygen and nutrients. New skin cells (epithelial cells) multiply and migrate across the wound surface to close the gap. Collagen fibers form to strengthen the new tissue.

What you see: Pink/red granulation tissue, wound edges pulling together, wound getting smaller

4

Maturation (Remodeling Phase)

Timeline: 3 weeks to 2 years after injury

The wound continues to strengthen and mature. Collagen fibers reorganize to increase tensile strength. The scar gradually fades and flattens. Even after the wound is closed, it continues to strengthen over many months.

What you see: Wound fully closed, scar tissue forms and gradually lightens in color

When Wounds Become Chronic

Chronic wounds get stuck in the inflammatory phase (Stage 2) and never progress to the rebuilding phase. They remain in a cycle of persistent inflammation and tissue breakdown, preventing new healthy tissue from forming. This is why specialized treatment is needed to "reset" the wound and restart the healing process.

How Are Chronic Wounds Treated?

Effective chronic wound treatment addresses the underlying barriers to healing while promoting tissue regeneration. Modern advanced wound care uses a multifaceted approach tailored to each patient's specific wound and medical conditions.

Debridement (Removing Dead Tissue)

The cornerstone of chronic wound care. Debridement removes dead tissue, biofilm, and bacteria that prevent healing. This "resets" the wound environment and stimulates the growth of healthy new tissue.

Methods: Sharp surgical debridement, enzymatic debridement, biological debridement (medical-grade maggots)

Regenerative Therapies

Advanced biological treatments that provide growth factors, proteins, and cellular components to jumpstart healing and rebuild tissue.

Examples: Skin substitutes, amniotic membrane allografts, growth factor therapies, cellular and tissue-based products

Advanced Wound Dressings

Specialized dressings maintain optimal moisture balance, manage drainage, reduce bacterial load, and create the ideal environment for healing.

Types: Hydrocolloids, hydrogels, alginates, foam dressings, antimicrobial dressings, collagen dressings

Negative Pressure Wound Therapy (NPWT)

A vacuum device that applies controlled suction to the wound, removing excess fluid, increasing blood flow, and drawing wound edges together to accelerate healing.

Best for: Large wounds, surgical wounds, wounds with significant drainage

Pressure Offloading & Protection

Removing pressure from the wound area is critical. Specialized boots, cushions, wheelchair modifications, and repositioning schedules prevent ongoing trauma.

Essential for: Diabetic foot ulcers, pressure ulcers, heel wounds

Managing Underlying Conditions

Controlling diabetes, improving circulation, optimizing nutrition, and addressing other medical issues that impair healing. This holistic approach is essential for long-term success.

May include: Blood sugar control, compression therapy, vascular interventions, nutritional support

Personalized Treatment Plans

Every chronic wound is unique. Effective treatment requires a personalized approach that addresses your specific wound type, underlying health conditions, lifestyle factors, and healing goals. Our wound care specialists create individualized treatment plans that combine the most effective therapies for your situation.

What to Expect During Treatment

Understanding the treatment process helps you know what's normal and what to expect on your healing journey.

Your First Visit

Comprehensive Assessment

Complete medical history, wound evaluation, photos, measurements, and vascular assessment

Testing if Needed

Blood work, wound cultures, or vascular studies to identify underlying issues

Personalized Treatment Plan

Your provider will explain your specific wound issues and outline the recommended treatment approach

Initial Treatment

Wound cleaning, debridement if needed, application of advanced dressings

Follow-Up Visits

Most patients require weekly or bi-weekly visits initially, then less frequently as healing progresses. Each visit typically includes:

Progress Monitoring: Measuring wound size and depth

Debridement: Removing any dead tissue or biofilm

Dressing Changes: Applying appropriate dressings

Adjustments: Modifying treatment based on response

Timeline & Expectations

Weeks 1-2: Getting Started

The wound may look worse before it looks better. Debridement removes dead tissue, which can temporarily make the wound appear larger. This is normal and necessary for healing.

Weeks 3-6: Early Progress

You should start seeing healthy pink/red tissue (granulation) filling the wound bed. The wound should begin getting smaller, less deep, and have less drainage.

Weeks 6-12: Continued Healing

The wound continues to close from the edges. New skin begins to cover the surface. You may transition to less intensive treatments.

12+ Weeks: Complete Closure

Most chronic wounds achieve complete closure within 3-4 months with proper treatment. Some complex wounds may take longer, but should show steady progress.

Important Note

Healing rates vary based on wound size, depth, location, and your overall health. Some wounds heal faster, others take longer. The key is consistent progress—your wound should show measurable improvement every 2-4 weeks.

Signs of Healing vs. Warning Signs

Good Signs of Healing

  • Pink or red granulation tissue filling the wound bed
  • Wound getting smaller and shallower over time
  • Edges of the wound pulling together (contracting)
  • Decreasing drainage and fluid
  • Less pain and discomfort
  • New skin forming at wound edges
  • Reduced odor

Warning Signs

  • Increasing redness, warmth, or swelling around the wound
  • Pus or cloudy drainage
  • Foul odor from the wound
  • Fever or chills
  • Increased pain not relieved by medication
  • Black or dark tissue in the wound
  • Wound getting larger instead of smaller

When to Call Your Provider

If you notice any warning signs, contact your wound care provider immediately. Early intervention can prevent serious complications like infection or sepsis.

Call 877-545-1300

Your Wound Can Heal

Chronic wounds are challenging, but with specialized treatment and advanced therapies, healing is possible. Don't give up hope—we're here to help you every step of the way.

Expert Care

Board-certified wound specialists

Mobile Service

We come to you

Insurance Accepted

Medicare Part B & most plans