Darker, Thicker Skin Around the Ankles: What Could Be Causing It?

Skin around the ankles that becomes darker, thicker, rough, or leathery over time is a common change, but it can happen for several reasons. One of the most frequent causes is related to blood circulation in the veins of the legs.

1. Chronic Venous Insufficiency (Poor Vein Circulation)

This is one of the most common causes of ankle skin changes.

When the veins in the legs do not return blood efficiently back to the heart, blood can collect in the lower legs. Over time, this may cause:

Brown or reddish skin colouring around the ankles
Thickened or hardened skin
Swelling, especially after standing
Aching or heaviness in the legs
Itching or dryness

The darker colour often comes from iron-containing pigments leaking from small blood vessels into the skin.

2. Varicose Veins

Enlarged, twisted veins can increase pressure in the leg veins and contribute to:

Dark patches near the ankles
Skin texture changes
Swelling
Leg discomfort

3. Eczema or Skin Inflammation

Long-term irritation or inflammation can cause the skin to become:

Thickened
Scaly
Darker than surrounding skin

Scratching repeatedly can make the skin even thicker.

4. Diabetes-Related Skin Changes

People with diabetes may develop skin changes due to:

Circulation problems
Nerve changes
Increased risk of infections
Slow healing

Dark, thickened skin around the ankles is not always caused by diabetes, but persistent changes are worth discussing with a healthcare professional.

5. Repeated Friction or Pressure

Tight shoes, socks, or repeated rubbing can cause:

Thickened skin
Dark patches
Callus-like areas

6. Previous Injury or Inflammation

After an injury, infection, or repeated swelling, the skin may develop darker pigmentation that remains for months or years.

What You Can Do

Depending on the cause, helpful steps may include:

✅ Keep the skin moisturised to reduce dryness and cracking
✅ Avoid scratching irritated areas
✅ Stay physically active to support circulation
✅ Elevate your legs when resting if swelling occurs
✅ Avoid tight clothing around the ankles
✅ Maintain healthy blood pressure, blood sugar, and weight

If vein problems are suspected, a clinician may recommend treatments such as compression therapy or further circulation checks.