10 signs on the foot seem to be harmless but warn serious health problems, need to be examined immediately

1. Golden toenails, pitting

Fungal infections often cause thick yellow toenails. Thick, yellow toenails can also be a sign of an underlying disease, including lymphedema (edema related to the lymphatic system), lung problems, psoriasis or rheumatoid arthritis.

Pitted nails, or pits that appear to be punctured at the nail surface, are due to disruption in the development of the nail on the nail plate. It affects half of people with psoriasis.

2. Cold feet

Cold legs can be caused by lack of blood, thyroid function is ineffective, because the thyroid gland can regulate body temperature and metabolism. In addition, poor circulation in the body is also one of the causes of this condition.

3. Toe color changes

Raynaud's disease can cause the toes to turn white, then bluish and then red and return to natural tones. The cause is the sudden narrowing of the arteries, called vasoconstriction. Raynaud may also be involved in rheumatoid arthritis, Sjögren's disease or thyroid problems.

4. Itchy toes

Itchy, scaly skin may be due to a common fungal infection. Reactions to chemicals or skin care products (called contact dermatitis) can also cause itching, along with redness and dryness. If the skin on the feet is itchy and thick like acne, it could be psoriasis, an overreaction of the immune system.

5. Legs often suffer from cramps

Cramping occurs when sudden muscle tension or dehydration occurs. If you suffer from frequent cramps, add plenty of foods containing magnesium, calcium, and potassium to your body.

6. Change the big toe

The shape of the toes (and usually the fingers) changes like a drumstick. The toenails are rounder than on and bent down. Lung disease is the most common underlying cause, but it can also be caused by heart disease, liver and digestive disorders, or some infections. Sometimes, drumstick toes are inherited in the family without any underlying pathology.

7. Swelling of the feet

This is often annoying because we stand for too long, especially if you're pregnant. But swollen feet can also be a sign of a serious health condition. The cause may be poor circulation, problems with the lymphatic system or blood clots. A disorder caused by poor kidney or thyroid gland can also cause foot swelling. If you have persistent leg swelling, see your doctor.

8. Numbness

Loss of sensation or a feeling of prickling in the foot is an alarming way for you to know that it is a symptom of peripheral neuropathy or peripheral nervous system that has been damaged. There are many causes, but diabetes, alcohol abuse or radiation therapy (cancer treatment) are the main culprits in the disease.

9. The foot ulcers are hard to heal

Bad foot ulcers are the main warning sign for diabetes. This disease can reduce the feeling in the foot, reduce the circulation to the wound, so even a blister can become a problem wound. Ulcers are also susceptible to infection. Slow healing of ulcers can also be caused by poor circulation from conditions such as peripheral artery disease.

10. Heel pain

The most common cause of heel pain is foot tendinitis, inflammation where this long ligament attaches to the heel bone. Pain can be strongest when you wake up and put pressure on your feet. Arthritis, excessive exercise and inappropriate shoes can also cause heel pain, such as tendinitis. Less common causes are bone spikes in the heel, bone infections, tumors, or fractures.