4 strange signs in the nail that alert you to diabetes, the most dangerous is number 1

Spoon-shaped nail

This may be a sign of a pigment disorder, a disorder that occurs when the body produces too much iron. They may also be a sign of iron deficiency anemia, heart disease and poor blood circulation.

Nails have dark lines

"You should never ignore the brown or black lines that appear vertically to the nail. These are specific disease warning signs of malignant tumors, requiring early detection and treatment," said Dr. Shilpi. Agarwal in Los Angeles-based physician (USA) warned.

See your doctor if dark nails appear on your nails, especially if they only occur on one finger.

Yellow nails

Yellow nails are a sign of old age. But if that comes with an unpleasant smell and peeling, you may be infected with a fungus. This disease has medicine to treat it, but you can take simple steps to prevent infection.

"Tea tree oil diluted with Vitamin E or grape seed oil, it is good to apply this mixture to your nails, especially to prevent hand fungus," advises Danielle Candido, a nail specialist from Gelish.

If you often nail, signs of yellowing nails warn of acrylic abuse. Smoking habits also lead to this condition.

Nails down

This is a sign of low blood oxygen, possibly caused by lung disease or signs of liver, kidney, heart, and intestinal inflammation.