In the clinic, parents often hold up their children’s hands for the doctor to see “The baby has a lot of white spots on the nails, is there a worm in the stomach? Should I give my child a worm treatment?” Indeed, in the past, many children, especially those from rural areas, had white spots on their nails due to intestinal roundworm disease. This kind of children usually have stomach pain, wasting, etc. Just go to the hospital and check the stool for roundworm eggs to know if there are roundworms. If the roundworm eggs are positive, you can take roundworm medication. But nowadays, as most of the fertilizers in farmland are replaced by chemical fertilizers, few children have intestinal roundworm disease, so the white spots on the nails caused by roundworms are no longer common. So what other diseases besides roundworms can cause white spots on the nails? In fact, any cause of disturbance of the internal environment of the digestive tract can cause white spots on the nails. For example, indigestion caused by over-eating, nutritional imbalance caused by picky eating, imbalance of intestinal flora caused by the use of antibiotics, etc. can be caused. In this case, it can be treated by controlling or adjusting the diet, increasing activity, using digestive aids or probiotics. In addition, deficiencies in trace elements or vitamins can also cause white spots on the nails. Therefore, the doctor will recommend a blood test to check trace elements and vitamin D, etc. If there is a deficiency of calcium, zinc or iron, it can be supplemented through diet or medication. Vitamins may mostly be supplemented by eating green vegetables, eggs, seafood, and mixed grains. However, vitamin D can only be synthesized by the skin after sunlight exposure because there are few sources in food. Because of the serious environmental pollution in China nowadays, which affects sunlight and ultraviolet light intake, child health experts recommend that preventive amounts of vitamin D should be supplemented for a long time after birth until puberty. Another condition is that trauma can also cause white spots on the nails. Nails are exposed for long periods of time, and children often do things with their bare hands, making it easy for nails to be damaged, such as by extrusion and wear. When the nail bed is damaged, the nail can appear white spots or white spots, and in serious cases, even under the nail blood accumulation. In this case there is no need to do any treatment, as the nail grows, the spotted part will be cut off. As mentioned above, white spots on a child’s nails is not a big deal in itself and parents should not worry too much about it. However, it often indicates that the child has a nutritional deficiency or a disturbance in the gastrointestinal environment, which can affect the child’s growth and development if not corrected in time. Therefore, once the child’s nail white spots are found, parents should promptly take the child to the hospital for examination, to find the cause of the disease, the right treatment, in order to ensure the healthy growth of children.