The following are some of the reasons why the baby’s eyes are full: 1. The nasolacrimal duct is relatively short and the flap at the opening is not fully developed, which prevents the smooth elimination of tears and leads to an increase in eye stool. The baby’s body has a heat build-up, and the baby’s mother eats too much fat during the month, which can lead to the baby’s accumulation of food and fire. The baby’s mother should eat lightly, easy to digest, and drink more water. The room temperature is too high, wear more, thick quilt is also cause baby fire, indoor temperature should be maintained at 18-22 ℃, baby cover quilt should also be thinner. 3, bacterial infection, if baby eye stool and yellow, accompanied by red eyes, tearing, suggesting a bacterial infection, should promptly take the baby to the hospital for treatment, so as not to affect the child’s vision development.