Is it normal for a over-two-months-old baby to have excessive drooling?

Whether excessive drooling in a baby over two months old is normal depends on whether other symptoms are present. The specific analysis is as follows:

1. Normal

By two months of age, a baby's salivary glands have gradually developed, leading to increased saliva production. However, because the oral swallowing function is still underdeveloped, the baby cannot effectively manage excess saliva, causing it to drool from the mouth. This is a normal physiological phenomenon and usually improves gradually as the baby grows.

2. Abnormal

If the baby shows additional symptoms such as persistent crying, irritability, or decreased appetite, excessive drooling may be caused by oral ulcers, in which pain stimulates the salivary glands to produce more saliva. Additionally, conditions such as sequelae of encephalitis might impair saliva control and swallowing function, leading to excessive drooling. These are considered abnormal and require timely intervention.

It is recommended to seek medical evaluation promptly to determine the underlying cause and receive appropriate management under a doctor’s guidance.