The causes of eye droppings in 50-day-old babies can be caused by physiological factors such as crying, or by lacrimal cystitis. 1. Physiological factors: it is normal for babies to have eye boogers, which will become more frequent after sleep and crying, generally no need to worry, you can use a gentle wet towel to wipe away the eye boogers regularly. 2. Dacryocystitis: As the embryonic residual membrane at the lower end of the nasolacrimal duct is not degraded in some infants, it blocks the lower end of the nasolacrimal duct, resulting in the accumulation of tears and bacteria in the lacrimal sac under the skin of the inner corner of the eye, which leads to secondary infection leading to dacryocystitis, and the phenomenon of excessive eye droppings will occur. This can be managed with local massage and topical anti-infective treatment, and in severe cases, medical attention is required for tear duct exploratory surgery. If the phenomenon of excessive eye boogers in 50-day-old infants occurs, they should go to the hospital for examination and appropriate treatment.