Diabetes Foot Care: How to Prevent and Care for Diabetic Foot
Diabetic foot is one of the most common complications in diabetes patients, and in severe cases, it may lead to amputation. According to statistics, about 15% of diabetes patients develop foot ulcers, and about 20% require amputation. However, the good news is that 85% of amputations can be avoided through proper prevention and care. This article provides a detailed introduction to the prevention and care of diabetic foot.
1. What is Diabetic Foot
1.1 Definition
Diabetic foot refers to foot infections, ulcer formation, and/or deep tissue damage in diabetes patients caused by neuropathy and vascular disease.
1.2 Causes
Neuropathy:
- Sensory nerve damage: Reduced or lost sensation in the feet
- Motor nerve damage: Foot muscle atrophy, foot deformity
- Autonomic nerve damage: Reduced foot sweating, dry skin
Vascular Disease:
- Large vessel disease: Arteriosclerosis, reduced blood flow
- Microvascular disease: Microcirculation disorders, tissue ischemia
Other Factors:
- Decreased immune function
- Infections difficult to control
- Poor wound healing ability
1.3 High-Risk Groups
Risk Factors:
- Long diabetes duration (>10 years)
- Poor blood sugar control
- History of smoking
- History of foot ulcers
- Peripheral neuropathy
- Peripheral vascular disease
- Foot deformity
- Poor vision
2. Early Signs of Diabetic Foot
2.1 Sensory Abnormalities
Common Symptoms:
- Numbness in the feet
- Crawling sensation
- Tingling
- Burning sensation
- Insensitive to temperature
- Insensitive to pain
2.2 Skin Changes
Common Manifestations:
- Dry skin
- Cracked skin
- Reduced sweating
- Changes in skin color
- Thickened toenails
2.3 Foot Deformities
Common Deformities:
- Claw toe
- Hammer toe
- Bunions
- Collapsed arches
- Charcot foot
2.4 Circulation Problems
Common Manifestations:
- Cold feet
- Weak dorsalis pedis pulse
- Intermittent claudication
- Resting pain
3. Prevention of Diabetic Foot
3.1 Blood Sugar Control
Control Targets:
- Fasting blood glucose: 4.4-7.0mmol/L
- 2-hour postprandial blood glucose: <10.0mmol/L
- HbA1c: <7.0%
Control Methods:
- Regular medication
- Healthy diet
- Appropriate exercise
- Regular monitoring
3.2 Quit Smoking
Importance of Quitting:
- Smoking worsens vascular disease
- Affects wound healing
- Increases infection risk
Methods:
- Make the decision to quit
- Seek professional help
- Use quitting aids
- Avoid secondhand smoke
3.3 Regular Examinations
Frequency:
- Low-risk: Once a year
- Medium-risk: Every 3-6 months
- High-risk: Every 1-3 months
Content:
- Foot appearance
- Skin condition
- Nail condition
- Sensory function
- Circulation
4. Daily Foot Care
4.1 Daily Inspection
Key Points:
- Sole
- Between toes
- Around nails
- Heel
- Inside shoes
Content:
- Any wounds
- Any blisters
- Any redness
- Any skin breaks
- Any signs of infection
4.2 Proper Foot Washing
Methods:
- Water temperature 37-40°C (use thermometer or elbow to test)
- Soak for no more than 10 minutes
- Use mild soap
- Wash gently
- Pay special attention to between toes
Contraindications:
- Don’t use hot water to scald feet
- Don’t soak for long periods
- Don’t use刺激性洗涤剂 (irritating detergents)
- Don’t scrub vigorously
4.3 Keep Dry
Key Points:
- Gently dry after washing
- Pay special attention to drying between toes
- Can use baby powder
- Keep feet breathable
4.4 Moisturizing Care
Methods:
- Use specialized foot moisturizer
- Apply to sole and top of foot
- Avoid applying between toes
- Apply 1-2 times daily
4.5 Nail Care
Trimming Methods:
- Trim nails when soft after foot washing
- Trim straight, don’t cut too short
- Smooth edges with a file
- Don’t cut into skin
- If poor vision, ask family members for help or seek medical treatment
Precautions:
- Don’t tear nail edges
- Don’t cut in an arc
- Don’t cut too deep
- Seek medical treatment promptly for ingrown nails
5. Shoe and Sock Selection
5.1 Shoe Selection
Selection Principles:
- Proper size (1-2 cm longer than foot)
- Wide-toe design
- Good breathability
- Soft sole
- No internal seams
Recommended Types:
- Diabetes-specific shoes
- Soft-bottom casual shoes
- Sports shoes
- Wide-toe leather shoes
Avoid:
- High heels
- Pointed-toe shoes
- Flip-flops
- Hard-soled shoes
- Wooden-soled shoes
5.2 Sock Selection
Selection Principles:
- Pure cotton material
- Light color (便于发现伤口 - easy to detect wounds)
- No tight elastic
- No seams or flat seams
- Change daily
Recommended Types:
- Diabetes-specific socks
- Pure cotton sports socks
- Toe socks
Avoid:
- Nylon socks
- Tight socks
- Socks with holes
5.3 Check Before Wearing
Content:
- No foreign objects inside shoes
- Insole is flat
- No damage to upper
- No rough areas inside shoes
6. Exercise and Foot Protection
6.1 Exercise Selection
Recommended Exercises:
- Swimming
- Cycling
- Upper body exercises
- Chair exercises
Exercises to Be Careful With:
- Long-distance walking
- Running
- Jumping exercises
- Barefoot exercises
6.2 Exercise Protection
Protective Measures:
- Wear appropriate sports shoes
- Wear cotton socks
- Don’t exercise too long
- Check feet after exercise
6.3 Avoid Barefoot
Precautions:
- Wear slippers indoors
- Wear sandals on the beach
- Wear slippers by the pool
- Wear shoes on grass as well
7. Foot Problem Handling
7.1 Blister Handling
Methods:
- Small blisters: Don’t pierce, keep clean and dry
- Large blisters: Seek medical treatment
- Broken blisters: Clean and disinfect, cover with dressing
7.2 Callus Handling
Methods:
- Don’t cut yourself
- Gently file after foot washing
- Use moisturizer
- Wear appropriate shoes
- Seek medical treatment if severe
7.3 Corn Handling
Methods:
- Don’t use corn removers
- Don’t cut yourself
- Wear appropriate shoes
- Seek medical treatment
7.4 Ingrown Nail Handling
Methods:
- Don’t handle yourself
- Don’t dig with sharp objects
- Seek medical treatment
- Surgery if necessary
7.5 Wound Handling
Methods:
- Clean the wound
- Cover with sterile dressing
- Don’t use irritating medications
- Change dressing daily
- Observe wound changes
- Seek medical treatment if not healing
8. When to Seek Medical Attention
8.1 Seek Immediate Medical Attention
Emergency Situations:
- Severe foot trauma
- Severe foot infection
- Foot gangrene
- Severe foot pain
- Significant foot color changes
8.2 Seek Prompt Medical Attention
Need Medical Attention:
- Foot wound not healing
- Foot redness, swelling, heat, pain
- Foot discharge
- Ingrown toenail
- New blisters on feet
8.3 Regular Medical Visits
Regular Checks:
- Annual foot examination
- When blood sugar control is poor
- When foot sensation is abnormal
- When foot changes occur
9. Treatment of Diabetic Foot
9.1 Conservative Treatment
Methods:
- Blood sugar control
- Wound care
- Pressure relief treatment
- Infection control
- Improving circulation
9.2 Surgical Treatment
Types:
- Debridement
- Vascular reconstruction
- Amputation
9.3 Rehabilitation Treatment
Methods:
- Physical therapy
- Rehabilitation training
- Psychological support
- Prosthesis installation (if needed)
10. Summary
The key to diabetic foot prevention and care lies in:
- Blood Sugar Control: Keep blood sugar stable
- Quit Smoking: Protect vascular health
- Daily Inspection: Detect problems and handle promptly
- Proper Foot Washing: Appropriate water temperature, keep clean
- Keep Dry: Pay special attention to between toes
- Moisturizing Care: Prevent skin dryness and cracking
- Nail Care: Trim properly, avoid ingrown nails
- Shoe and Sock Selection: Comfortable and breathable, protect feet
- Avoid Barefoot: Protect feet at all times
- Seek Medical Attention Promptly: Don’t delay when problems are found
With these diabetic foot care knowledge, diabetes patients can effectively prevent the occurrence and progression of diabetic foot and protect their feet!
Disclaimer: This article provides health information only and cannot replace professional medical advice. For foot problems, please seek medical attention promptly.