There are two main reasons why children wake up frequently at night: First, the child should be considered to have a calcium deficiency. If the child also has symptoms of calcium deficiency such as excessive sweating, restless sleep at night, occipital baldness, beaded ribs, chicken chest, etc., the blood calcium level should be tested to see if there is a real calcium deficiency, and if there is a calcium deficiency, calcium should be supplemented in a timely manner. Second, the main consideration is whether the child has gastrointestinal disorders. If the child often has hyperactive bowel sounds, constipation, diarrhea symptoms, we should consider the gastrointestinal dysfunction caused. The child’s gastrointestinal discomfort will repeatedly wake up, this situation to regulate the child’s gastrointestinal tract dysfunction, you can eat some probiotics.