The whitening of the baby’s dentinal meat may be a normal phenomenon, or it may be caused by stomatitis, iron deficiency anemia, traumatic mouth ulcers and other reasons. 1. Normal phenomenon: when the baby is in the teething period, the teeth outward eruption process, there may be the phenomenon of whitening of the bed of the teeth, which is a normal physiological phenomenon, without special intervention, when the teeth eruption, the bed of the teeth meat whitening phenomenon can gradually disappear. 2. Stomatitis: usually caused by Candida albicans infection in the baby’s mouth, the stimulation of inflammation and infection may cause whitening of the dentinal meat, which may be accompanied by local pain, edema and other symptoms. 3. Iron deficiency anemia: If the baby has iron deficiency anemia, especially if the iron deficiency anemia is more serious, it may cause the whitening of the gums, and may be accompanied by pallor, weakness and other manifestations. 4. traumatic oral ulcers: due to the baby oral mucosa is very fragile, if in the usual play toys, biting into the hard toys, may cause traumatic oral ulcers, which may lead to whitening of the teeth bed flesh. Baby teeth white flesh, may also be caused by other reasons, if accompanied by obvious symptoms of discomfort, it is recommended to seek medical advice as soon as possible, to give targeted treatment and conditioning.