The common causes of neonatal hypoglycemia are as follows: 1. Premature babies have less food and are more difficult to feed; 2. Premature babies have poor sugar storage capacity; 3. The occurrence of asphyxia or infection in newborns leads to poor sugar storage capacity, which can also cause hypoglycemia; 4. Mothers with a history of diabetes are also prone to hypoglycemia in their fetuses; 5. Inborn genetic metabolic diseases lead to hypoglycemia; 6. Islet cell hyperplasia or islet cell tumor can also cause hypoglycemia in newborns; 7. Endocrine diseases such as hypothyroidism and hypopituitary hypofunction, etc.