What causes black spots on nails?

Normal nails are flesh-colored. If you find black spots on your nails, you should pay more attention. It could be due to chronic diseases, vitamin deficiencies, anemia, etc., or it could be due to trauma caused by external force.

1. Blackening of the nails and broken spots under the nails indicate infection-induced myocarditis (severe heart infection), other heart diseases, or bleeding disorders.

2. Black nails and/or thin, flat, spoon-shaped nails are signs of vitamin B12 deficiency or anemia. (If your hands come into contact with detergents or allergens, your nails may also turn black or gray.)

3. Half-white nails and black spots on the fingertips may indicate kidney disease.

Why are nails brittle and fragile?

1. Brittle nails may indicate iron deficiency, thyroid problems, impaired kidney function, or blood circulation problems.

2. Brittle, soft and easily worn nails indicate a lack of nutrition and may indicate hyperthyroidism.

3. Easy to break, crack, and peel off, indicating malnutrition and lack of hydrochloric acid and protein. Minerals are also extremely deficient at this time.

4. Thinning nails may be a sign of lichen planus.