There are several possibilities for a one-year-old baby with white dots on the nails, such as roundworm infection, poor digestion, lack of trace elements, abnormal nail bed development, etc., as follows: 1. The baby has white dots on the nails, accompanied by frequent stomach pains, and can also go to the hospital for routine stool examination, which is mainly considered to be caused by roundworm infection. The baby’s nails have white spots. 2, the baby itself has indigestion, often bloating, nausea and vomiting symptoms, resulting in the lack of nutrients in the body, there will be white spots on the nails. 3, the body’s growth and development in early childhood are relatively fast, the need for more nutrients, when The lack of micronutrients and vitamins can lead to small white dots on the nails. A balanced diet, proper nutrition, and vitamin and protein supplementation can improve the symptoms.4. Mild damage to the nail bed or abnormal development in younger children can also lead to the appearance of small white dots on the nails.