Gangrene Care in
Pearland & Lake Jackson, TX
Gangrene is a serious condition that happens when body tissue dies due to a loss of blood flow, infection, or both. In vascular care, it is most often linked to advanced peripheral arterial disease (PAD), where narrowed or blocked arteries prevent enough oxygen-rich blood from reaching the toes, feet, or lower leg. The affected area may look dark, discolored, or black, and can be accompanied by swelling, numbness, drainage, or a foul odor.
Board Certified Specialist
Limb Salvage Focus
Minimally Invasive
Pearland & Lake Jackson
Emergency
Needs Prompt Care
PAD
Most Common Underlying Cause
Limb Salvage
The Goal of Treatment
20+ Years
Of Vascular Experience
Overview
What Is Gangrene?
Gangrene is a serious medical condition that occurs when a part of the body's tissue dies. Blood circulation is what delivers oxygen and nutrients to tissue and removes waste; when that supply is severely restricted or completely cut off, the tissue can no longer sustain itself and begins to die.
Gangrene most commonly affects the extremities — the toes, feet, and lower legs — because those are the areas farthest from the heart, where circulation is hardest to maintain. In vascular care it is most often caused by advanced peripheral arterial disease (PAD), and diabetes is a major contributing factor because it damages vessels and nerves.
Gangrene is considered a medical emergency. Because dead tissue is vulnerable to infection, it can progress quickly and lead to the spread of infection through the body. The good news is that prompt vascular care can often restore blood flow and save the limb — which is exactly why we treat every suspicion of gangrene urgently.
WHY PATIENTS CHOOSE COASTAL VASCULAR
A Physician-Owned Practice, Not a Corporate Chain
Dr. Ayar Handles Your Care
Dr. Ayar personally does every consultation and procedure. You will not be handed off to a PA or NP, as at many clinics.
Two Locations, One Physician
Many clinics have many locations and few doctors. At our Pearland and Lake Jackson offices, you always see Dr. Ayar.
Physician-Owned
Coastal Vascular Center is physician-owned, not corporately owned. Your care is guided by your doctor.
Most Insurance Accepted
We accept most insurance plans. Call our office to confirm your coverage before your visit.
Understanding the Types
Types of Gangrene
Gangrene can present in several forms, each with distinct causes and characteristics. Treatment depends on the type, the extent of tissue damage, and your underlying health.
Dry Gangrene
Wet Gangrene
Gas Gangrene
Internal Gangrene
Fournier's Gangrene
Progression Risk
Warning Signs
Symptoms of Gangrene
Symptoms can vary depending on the type and location, but they commonly include the following. If you notice any of these signs, a vascular evaluation can help protect tissue and prevent complications.
Discolored Skin
The affected area may turn dark brown, black, blue, green, or a pallid gray — one of the earliest and most visible warning signs that tissue is not getting enough blood.
Pain, Swelling, or Tenderness
Persistent pain in the affected site — sometimes severe and out of proportion — along with swelling or tenderness that does not improve with rest.
Foul-Smelling Discharge
Pus or a foul-smelling discharge is a strong indicator of infection, which is especially dangerous in wet gangrene because it can spread quickly.
Blisters or Non-Healing Sores
Blisters, or sores that will not heal and may be getting worse. Without restored blood flow, the tissue simply cannot repair itself no matter how it is dressed.
Numbness or Loss of Sensation
A feeling of numbness, or a complete loss of sensation in the area. In the feet, this can also mean an injury goes unnoticed — a particular risk for people with diabetes.
Fever and Chills
When infection is present, you may develop fever and chills. These can be signs of a serious systemic response and should never be dismissed or waited out.
In the legs, watch for an earlier clue
Leg pain with walking that eases with rest — called claudication — can be the first sign of serious vascular disease, long before gangrene develops. Catching it early is how we protect the limb.
Take the first step toward better vascular health — schedule your consultation with Coastal Vascular Center today.
Causes & Risk Factors
What Causes Gangrene?
Gangrene is primarily caused by two factors: loss of blood flow and infection. Understanding the conditions and factors behind it is the first step toward prevention and treatment.
Peripheral Arterial Disease (PAD)
The primary vascular cause. Plaque narrows the leg arteries and restricts blood flow until tissue can no longer sustain itself. In its most severe form — critical limb ischemia — even rest is not enough to keep the tissue alive.
Diabetes
Diabetes damages blood vessels and nerves, impairing circulation and making it harder to notice a minor injury. High blood sugar also slows healing and weakens the body's ability to fight infection.
Injury, Burns, or Frostbite
These can damage blood flow to the affected area, cutting off the supply of oxygen the tissue needs. In someone with already-compromised circulation, even a small injury can escalate.
Slow Wound Healing
A wound that will not heal is both a warning sign and a risk factor. It often points to underlying vascular disease such as arterial ulcers, which can progress to gangrene if circulation is not restored.
Weakened Immune System
A suppressed immune system makes it harder to fight off the infections that can drive gangrene. This includes people on immunosuppressive medications or living with certain chronic conditions.
Smoking & Lifestyle
Smoking is the single strongest risk factor — nicotine constricts arteries and smoke chemicals damage their lining. Obesity and a sedentary lifestyle contribute further by driving poor circulation and delayed healing.
Who is at higher risk?
Smoking or a history of smoking (the strongest risk factor)
Peripheral arterial disease (PAD)
High cholesterol
A weakened immune system
Diabetes
High blood pressure (hypertension)
A wound, ulcer, or injury that is not healing
If you have two or more of these risk factors and notice a wound, discoloration, or numbness on your foot or leg, a vascular evaluation is the most important next step.
Diagnosis
How Gangrene Is Diagnosed
Diagnosing gangrene quickly is what allows us to act — remove dead tissue, restore blood flow, and stop any infection before it spreads. The process always begins with a careful physical examination and a conversation about how the problem started.
I assess the affected area for the classic signs: changes in skin color, coolness or loss of sensation, and any foul-smelling discharge. I also check for signs of infection, which is especially important in wet and gas gangrene.
To understand the circulation behind the problem, I use an ankle-brachial index (ABI) — a simple, painless pressure test — and a duplex ultrasound performed right in our office to map the arteries and check the veins. Together, these tell me exactly what is limiting blood flow and where to intervene.
When infection is suspected, blood tests — such as a white blood cell count — and imaging may also be used. In most cases, though, a careful exam, ABI, and ultrasound give me the answer and a plan.
When to Call
Don't Wait — Gangrene Is an Emergency
Delaying treatment can lead to the spread of infection and potentially fatal outcomes. Contact a doctor promptly if any of the following applies to you.
At the First Sign of Infection or Injury
Especially if you have an underlying condition like diabetes, contact a provider for any sign of infection or injury to your extremities.
If You Notice Any Symptom of Gangrene
Discoloration, foul discharge, or a sore that will not heal should trigger an immediate call. Gangrene can progress quickly.
If You Have a Fever or Feel Unwell
These might be signs of sepsis, a serious and life-threatening response to infection that can occur with gangrene.
If You Have a Condition Affecting Blood Flow
People with diabetes, PAD, or other conditions that impair circulation should be especially vigilant and consult a specialist promptly.
Treatment
Treatment for Gangrene
Treatment always has two goals working together: stopping the immediate threat and fixing the underlying circulation. Here is how I approach both.
Antibiotic Therapy
Surgical Debridement
Angioplasty
Atherectomy & Stenting
Surgical Bypass
Hyperbaric Oxygen & Grafts
In the legs, watch for an earlier clue
Leg pain with walking that eases with rest — called claudication — can be the first sign of serious vascular disease, long before gangrene develops. Catching it early is how we protect the limb.
Patient Stories
Limbs Saved, Lives Restored
Hear from patients who trusted Dr. Ayar with an urgent circulation problem — and kept their limb.
FAQS
Gangrene FAQs
Answers to common questions about gangrene for patients in Pearland, Lake Jackson, and the greater Houston area.
What is gangrene?
What causes gangrene?
What are the different types of gangrene?
What are the symptoms of gangrene?
Is gangrene a medical emergency?
Can gangrene be treated without amputation?
How is gangrene treated at Coastal Vascular Center?
Where do you treat gangrene near Houston?
Local Care
Why Choose Coastal Vascular Center?
Coastal Vascular Center is a specialty vascular practice — artery and vein care is what we do every day. Our physicians are leaders in vascular health, using the latest minimally invasive techniques, and we offer both bare-metal and drug-eluting stents customized to your needs. Dr. Ayar performs arterial stenting at both our Pearland and Lake Jackson locations, so patients throughout the Gulf Coast region have access to expert care without the logistics of a large hospital setting. From your first consultation through recovery, our team provides compassionate support and clear communication.
Pearland Office
Lake Jackson Office
Pearland
Lake Jackson
Angleton
Clute
Freeport
Alvin
Clear Lake
Friendswood
Brazoria County
Greater Houston
Related Conditions
Explore the Arterial Disease Family
These conditions are closely connected and often treated together. Learn how Dr. Ayar cares for the full spectrum of vascular health.
Peripheral Arterial Disease (PAD)
Claudication
Rest Pain
Arterial Ulcers
Arterial Stenting
Dialysis Access Management
Learn More
Related Articles on Gangrene
A leg warm to touch is one of those symptoms that can mean very little or quite a lot. Sometimes it is just a bruise, a bug bite, or a hot day. Other times, warmth is the body's...
Expert Care
Have Questions? Let's Talk.
Gangrene is a medical emergency. Delaying treatment can lead to the spread of infection and potentially fatal outcomes — but with early intervention, we can often remove dead tissue, restore blood flow, and save the limb. If you notice a sudden color change, worsening pain, a cold foot, or a wound that is turning dark or not healing, please call us today or schedule an urgent evaluation.
Call us now to learn more and book your appointment
Let’s walk this journey to wellness together.