KBK_Early_Signs_of_Gangrene_Editable12
                     Early Signs of Gangrene in Legs
You Should Never Ignore
KBK Multi Specialty Hospital
Early recognition • Prompt medical care • Limb protection
Earlly  recogniitition  •  Prompt  mediicall  care  •  Liimb  protectition
Introduction
A small wound on the leg or foot may appear harmless, but certain infected 
wound symptoms can lead to serious complications such as gangrene.
Gangrene occurs when body tissue dies because of poor blood 
circulation or severe infection.
It commonly affects the legs, toes, feet and fingers, especially in 
people with diabetes or poor blood flow.
Recognizing warning signs early can help reduce severe infection, 
tissue damage and the risk of amputation.
KBK Multi Specialty Hospital  |  Page 2
What Is Gangrene?
Gangrene is a serious condition in which body tissue dies because of reduced 
blood supply, bacterial infection or untreated wounds.
It most commonly develops in the legs, feet or toes.
Higher-risk groups include people with diabetes, poor circulation, 
smoking habits or chronic infections.
KBK Multi Specialty Hospital  |  Page 3
Early Sign 1: Skin Discoloration
One of the earliest warning signs is a change in skin color around a 
wound or affected area.
Possible changes include:
• Dark red
• Purple
•In B sreovwenre cases, black skin may appear on the toes or around wound 
•m Barlugiisnhs.
• Black
KBK Multi Specialty Hospital  |  Page 4
Early Sign 2: Persistent Swelling & Redness
Swelling around the foot or leg that does not reduce over time can 
indicate infection.
Redness that spreads gradually may suggest worsening infection or 
tissue damage.
Do not ignore rapidly increasing swelling or redness, particularly 
around an open wound.
KBK Multi Specialty Hospital  |  Page 5
Early Sign 3: Severe Pain or Sudden Numbness
Gangrene may initially cause severe pain, burning sensation or 
tenderness.
As tissue damage progresses, the affected area may become numb 
because of nerve damage.
A sudden change from pain to numbness should receive prompt 
medical attention.
KBK Multi Specialty Hospital  |  Page 6
Early Sign 4: Foul-Smelling Discharge
Pus, fluid leakage or a bad odor from a wound can be a major 
warning sign of infection.
Foul-smelling discharge is an important symptom to take seriously, especially 
when combined with swelling, discoloration or fever.
KBK Multi Specialty Hospital  |  Page 7
Early Sign 5: Skin Becoming Cold
Reduced blood circulation can make the affected area feel unusually 
cold compared with surrounding skin.
A cold foot or toe together with discoloration, numbness or severe pain may 
indicate a circulation problem requiring urgent assessment.
KBK Multi Specialty Hospital  |  Page 8
Early Sign 6: Non-Healing Wounds
Cuts, ulcers or blisters that fail to heal properly should not be 
ignored.
This is particularly important for people with diabetes, poor 
circulation or reduced sensation in the feet.
Regular foot checks can help identify problems before they become 
severe.
KBK Multi Specialty Hospital  |  Page 9
Diabetic Gangrene Symptoms
People with diabetes are more vulnerable to severe wound infections 
and delayed healing.
Common warning signs include:
• Foot ulcers that do not heal
• Blackened skin around wounds
• Swelling in the foot
• Pus discharge
• Numbness in legs or toes
• Foul smell from wounds
• Skin turning dark or black
Ignoring these symptoms can increase the risk of serious 
complications.
KBK Multi Specialty Hospital  |  Page 10
Causes of Gangrene in Legs
Several conditions can increase the risk of gangrene:
• Diabetes
• Poor blood circulation
• Untreated infections
• Severe injuries
• Smoking
• Peripheral artery disease
• Deep wounds or burns
KBK Multi Specialty Hospital  |  Page 11
When Should You See a Doctor?
Seek immediate medical attention if you notice:
• Spreading redness
• Black skin on toes
• Severe leg pain
• Foul smell from a wound
• Fever with wound infection
• Swelling that worsens quickly
• Non-healing diabetic wounds
Early diagnosis and treatment can help prevent permanent tissue 
damage.
KBK Multi Specialty Hospital  |  Page 12
Treatment Options for Gangrene
Treatment depends on the severity of infection and tissue damage.
Common approaches may include:
• Wound cleaning and dressing
• Antibiotics when appropriate
• Removal of dead tissue (debridement)
• Advanced wound care
• Improving blood circulation
• Diabetic wound management
In severe cases, surgery may be required to stop infection from 
spreading.
KBK Multi Specialty Hospital  |  Page 13
How to Prevent Gangrene
You can reduce the risk by:
• Keeping wounds clean
• Managing diabetes properly
• Checking feet daily
• Avoiding smoking
• Treating infections early
• Wearing proper footwear
• Seeking medical care for non-healing wounds
KBK Multi Specialty Hospital  |  Page 14
Frequently Asked Questions
Can gangrene start from a small wound?
Yes. A small cut or blister can become infected and progress to gangrene if 
left untreated, especially in people with diabetes.
What does gangrene look like in the beginning?
It may involve redness, swelling, skin discoloration or dark/black 
skin.
Is gangrene painful?
It may cause severe pain initially; later, numbness can occur 
because of nerve damage.
Who is at higher risk?
People with diabetes, poor blood circulation, smoking habits or 
untreated infections.
KBK Multi Specialty Hospital  |  Page 15
Conclusion
Gangrene is a serious condition that should never be ignored.
Warning signs such as black skin on toes, foul-smelling wounds, 
swelling and non-healing ulcers require prompt medical attention.
People with diabetes should be especially careful because diabetic 
wound complications can worsen rapidly.
Early diagnosis and proper wound care can help protect the affected 
limb and prevent further complications.
KBK Multi Specialty Hospital
Wound Care & Multispecialty Healthcare
KBK Multi Specialty Hospital  |  Page 16