White dots on the nails are not a sign of cancer and cannot be used to determine that the body is suffering from cancer. Normal nails should be evenly colored light pink, tough and with a smooth surface. White dots on nails may be caused by lack of nutrients, such as calcium, silicon, zinc and other trace elements. Long-term iron deficiency anemia can also cause white spots on the nails. In addition, white spots on the nails may also be related to fungal infections and nail trauma. If the white dots do not tend to increase in size, and the nail surface is smooth and not brittle, nail malnutrition is more likely. The white spots on the nails may be a sign of poor health, so you can eat more food to replenish your blood and Qi, pay attention to personal hygiene, cut your nails and wash your hands regularly. If the symptoms are more serious, you can go to the hospital dermatology department for a clear diagnosis and symptomatic treatment to restore the nails to normal.