Children fingernails long white spots is what causes

The most common cause of white spots on the nails is caused by nail trauma. This situation generally disappears as the nails grow, and the nails with white spots disappear after being cut off. Generally, no special treatment is required; it may also be caused by the lack of trace elements in the child's body., especially the lack of calcium, resulting in poor nail calcification. When the nails are squeezed or collided, white spots will appear. If the child has ascariasis, it can also cause white spots on the nails, or anemia, malnutrition, or intestinal diseases.