Your feet may be trying to tell you something important. From cold toes to swollen ankles, subtle changes in your feet can reveal early signs of serious health conditions—like diabetes, heart disease, or thyroid disorders. This guide walks you through 19 foot-related symptoms and what they might mean for your overall well-being.

1. Cold Feet, Many Culprits

Constantly cold toes may indicate poor circulation, often linked to smoking, high blood pressure, or heart disease. Uncontrolled diabetes can also cause nerve damage that makes feet feel cold. Other possible causes include hypothyroidism and anemia. A doctor can help determine whether there’s an underlying issue—or if you simply have cold feet.

2. Foot Pain

If your feet ache after a long day, uncomfortable shoes may be the culprit. However, pain unrelated to footwear could stem from a stress fracture—a small crack in a bone—often caused by intense exercise, especially high-impact sports like basketball or running. Osteoporosis also increases the risk.

3. Red, White, and Blue Toes

Raynaud’s disease causes toes to turn white, then blue, then red before returning to normal. This is due to vasospasms—sudden narrowing of the arteries—triggered by stress or temperature changes. While usually harmless, Raynaud’s may be associated with rheumatoid arthritis, Sjögren’s disease, or thyroid issues.

4. Heel Pain

Plantar fasciitis, inflammation where the ligament attaches to the heel bone, is the most common cause. The pain is often sharpest in the morning. Other causes include arthritis, excessive exercise, ill-fitting shoes, tendonitis, bone spurs, infections, tumors, or fractures.

5. Dragging Your Feet

Changes in walking—like a wider gait or foot dragging—may signal peripheral nerve damage. About 30% of cases are linked to diabetes. Other causes include infection, vitamin deficiency, alcoholism, or neurological issues involving the brain, spinal cord, or muscles.

6. Clubbed Toes

Clubbing alters the shape of toes and nails, making them rounded and downward-curving. Lung disease is the most common cause, but heart disease, liver or digestive disorders, and infections may also be responsible. Sometimes, clubbing is hereditary and not linked to illness.

7. Swollen Feet

Temporary swelling can result from prolonged standing or travel, especially during pregnancy. Persistent swelling may indicate serious conditions like poor circulation, lymphatic issues, blood clots, kidney disorders, or hypothyroidism. Consult a doctor if swelling persists.

8. Burning Feet

A burning sensation is common in diabetics with nerve damage. Other causes include vitamin B deficiency, athlete’s foot, chronic kidney disease, poor circulation (peripheral arterial disease), or hypothyroidism.

9. Sores That Don’t Heal

Non-healing foot sores are a major warning sign of diabetes, which impairs sensation, circulation, and wound healing. Even minor blisters can become serious. Diabetics should inspect their feet daily. Poor circulation from peripheral artery disease may also slow healing.

10. Pain in the Big Toe

Gout often causes sudden pain, redness, and swelling in the big toe joint. Osteoarthritis is another possible cause. A rigid joint may indicate hallux rigidus, a form of arthritis with bone spur development. Turf toe, common in athletes, results from ligament injury.

11. Pain in the Smaller Toes

A burning pain in the ball of the foot that radiates to the toes may be Morton’s neuroma—a thickening of tissue around a nerve, typically between the third and fourth toes. It’s more common in women and caused by injury or pressure.

12. Itchy Feet

Itchy, scaly skin may be athlete’s foot—a fungal infection. Contact dermatitis from chemicals or skincare products can also cause itching, redness, and dryness. Thick, pimple-like skin may indicate psoriasis. Medicated creams can help.

13. Claw Toe

This deformity may result from tight shoes or nerve damage due to diabetes, alcoholism, or neurological disorders. Toes bend upward from the ball of the foot and downward from the middle joint, resembling a claw. Stretching, special shoes, or surgery may be needed.

14. Foot Spasms

Sharp, sudden pain from muscle cramps can last minutes. Causes include overwork, fatigue, poor circulation, dehydration, or imbalances in potassium, magnesium, calcium, or vitamin D. Pregnancy and thyroid disorders may also contribute. Frequent spasms warrant medical advice.

15. Dark Spot on the Foot

Melanoma, a dangerous skin cancer, can appear on feet—even under toenails—where it may resemble a black spot. These areas are often overlooked because they’re not sun-exposed.

16. Yellow Toenails

Thickened yellow toenails often signal a fungal infection. They may also indicate underlying conditions like lymphedema, lung disease, psoriasis, or rheumatoid arthritis.

17. Spoon-Shaped Toenails

Concave nails may result from injury or exposure to petroleum-based solvents. Iron deficiency is another possible cause.

18. White Nails

White areas on nails may stem from injury, infection, or psoriasis. If the nail is intact but mostly white, it could signal serious conditions like liver disease, heart failure, or kidney disease. Discuss concerns with your healthcare provider.

19. Pitting of the Nails

Small depressions in the nail surface—known as pitting—are caused by disrupted nail growth. This affects up to half of people with psoriasis.