Diabetes and Your Feet: Understanding the Risks and Taking Action

Diabetes is a condition that affects how your body uses sugar (glucose). While it impacts many parts of your health, it can have a particularly profound effect on your feet. High blood sugar levels, over time, can lead to serious complications that might even put your feet at risk. But don't worry, understanding these risks is the first step to protecting yourself. This guide will walk you through how diabetes affects your feet and what you can do to keep them healthy.

Why Do High Blood Sugars Hurt Your Feet?

Imagine your blood vessels are like tiny pipes carrying essential nutrients and oxygen throughout your body. When blood sugar levels stay high for too long, it's like pouring thick syrup into those pipes. The vessels can become damaged and narrowed, making it harder for blood to flow freely. This reduced blood flow is a major problem, especially for your feet and toes, which are the furthest parts from your heart.

This poor circulation means that your feet don't get the oxygen and nutrients they need to stay healthy. It also means that if an injury does occur, it won't heal as quickly. This is why managing your diabetes well is so important – it's not just about controlling sugar levels; it's about protecting your entire body, including your feet.

Nerve Damage (Diabetic Neuropathy)

One of the most common complications of diabetes is nerve damage, often called diabetic neuropathy. High blood sugar can gradually damage the nerves, and this often shows up first in your feet and legs. It's estimated that more than half of people with diabetes will experience neuropathy at some point.

Symptoms of Neuropathy in the Feet:

• A tingling or "pins and needles" sensation.
• Numbness or a loss of feeling.
• Your feet feeling like they're "falling asleep" often.
• A burning sensation.
• Sharp pains or cramps.

The severity of these symptoms can vary greatly. Sometimes, you might not notice minor injuries like cuts, blisters, or bruises because you can't feel them. This is where the danger lies. An unnoticed injury can become infected, and because of the poor blood flow, it might not heal properly.

Scenario: Meena, who has had Type 2 diabetes for 10 years, noticed her slippers felt a bit loose. She didn't think much of it until her daughter pointed out a small, red sore on the side of her foot that Meena hadn't felt at all. Thankfully, they addressed it quickly.

Circulation Problems (Peripheral Vascular Disease)

Diabetes also increases your risk of developing peripheral vascular disease (PVD). This is a condition where blood vessels in your legs and feet become narrowed or blocked, severely limiting blood flow. While anyone can get PVD, it's much more common in people with diabetes due to the blood vessel damage caused by high sugar levels.

Thickened blood, a common issue with uncontrolled diabetes, can also make it harder for it to flow through these narrowed vessels. Reduced blood flow to your feet means:

• Sores and infections take much longer to heal.
• There's a higher risk of tissue death (gangrene) if an infection becomes severe or blood flow is critically low.

Charcot Foot: A Rare but Serious Complication

In some cases, nerve damage combined with unnoticed injuries can lead to a rare but severe condition called Charcot foot. This typically happens when someone injures their foot (like a sprain or fracture) but doesn't feel the pain because of neuropathy. They continue to walk on the injured foot, causing further damage.

Over time, the bones and joints in the foot can weaken, collapse, and become deformed. You might notice:

• Swelling in the foot.
• The foot feeling warm to the touch.
• A change in the shape of the foot, often with a collapsed arch, making the bottom of the foot appear more rounded.

This deformity increases the risk of sores forming due to friction from shoes. If these sores get infected, and healing is slow due to poor circulation, it can lead to serious complications, including amputation.

When to See a Doctor About Your Feet

It's vital to be vigilant about your foot health. Even if you haven't lost feeling in your feet, you should contact your doctor immediately if you notice any of the following:

• New sores, blisters, or redness.
• Ingrown toenails.
• Corns or calluses that are painful or bleeding.
• Changes in foot shape or colour.
• Any signs of infection, like increased warmth, swelling, or pus.
• Persistent pain, tingling, or numbness.

Daily Foot Care: Your Best Defence

The good news is that with diligent daily care, you can significantly reduce the risk of these complications. Think of your daily foot check as an important part of managing your diabetes.

1. Inspect Your Feet Daily: Look at the tops, bottoms, sides, and between your toes. Use a mirror if you can't see the soles easily.
2. Wash Your Feet: Wash your feet every day in lukewarm water. Avoid hot water, as you might not feel if it's too hot and could burn your skin.
3. Dry Your Feet Carefully: Pat your feet dry gently, especially between the toes.
4. Moisturise: Apply a moisturising lotion to the tops and bottoms of your feet, but avoid putting it between your toes, as this can encourage fungal growth.
5. Trim Toenails Safely: Cut your toenails straight across and gently file any sharp edges. If you have trouble with this, ask a healthcare professional to do it for you. Never cut calluses or corns yourself.
6. Wear Proper Footwear: Always wear comfortable, well-fitting shoes. Avoid going barefoot, even at home. Choose socks made of breathable materials and ensure they don't have tight elastic bands that can restrict circulation.

Regular Professional Foot Exams

In addition to your daily checks, it's essential to have your feet examined by your doctor or a podiatrist (foot specialist) at least once a year, or more often if you have existing foot problems or neuropathy.

Your healthcare provider will check for:

• Nerve damage.
• Blood flow to your feet.
• Skin and nail conditions.
• Any deformities or early signs of problems.

Managing Your Diabetes is Key

Ultimately, the best way to protect your feet is to manage your diabetes effectively. Keeping your blood sugar levels within your target range, maintaining a healthy weight, eating a balanced diet, and staying physically active can prevent or delay nerve damage and circulation problems.

Practical Tip: Aim for at least 30 minutes of moderate physical activity most days of the week. A brisk walk after dinner is a great start!

Frequently Asked Questions About Diabetic Feet

Q1: Can I get a pedicure if I have diabetes?

It's best to be cautious. If you have neuropathy or poor circulation, you should avoid professional pedicures at salons, as the risk of infection or injury is high. If you do go, ensure the salon follows strict hygiene protocols and inform the technician about your diabetes. Some people with diabetes prefer to see a podiatrist for nail care.

Q2: What kind of shoes should I wear?

Wear comfortable, well-fitting shoes that don't rub or pinch. Look for shoes with a wide toe box, good support, and cushioned soles. Avoid high heels, pointed toes, or tight shoes. Always check the inside of your shoes for any rough spots before putting them on.

Q3: Is it okay to walk barefoot?

No, it's generally not recommended for people with diabetes to walk barefoot, even indoors. You could easily step on something sharp or hot without realising it, leading to an injury. Always wear comfortable slippers or shoes at home.