There are more causes of tearing in infants. If tears are present at birth, congenital absence of the tear dots, congenital atresia of the lacrimal duct, congenital narrowing of the lacrimal duct, and congenital lacrimal sac fistula are considered. Lacrimal duct obstruction is also common, mainly due to the congenital Hasner flap at the lower end of the nasolacrimal duct not being absorbed at birth and the lacrimal duct being blocked, but also due to the infant developing conjunctivitis being blocked by inflammatory secretions, usually in the days or weeks after birth, the parents find that the child has runny eyes or has increased secretions, and on examination there can be mucous tears or purulent secretions overflowing from the lacrimal dots when the lacrimal sac area is pressed. If there is no more voluntary tearing at birth, it is necessary to consider whether the patient has a recent infection, and if it is secondary to lacrimal sacitis or conjunctivitis, topical antibiotic eye drops can be ordered for symptomatic treatment. It is also possible that the parents may have accidentally injured the child’s cornea with their fingers or sharp objects during care. It is also possible that the child’s eyelashes are growing too fast, too long and too curly, and that there is an increase in tearing. It is also possible that a foreign body has entered the eye and the child does not know how to express it, so the eye irritates and reflexively tears more. If your child is too young to have tears, please take him or her to a specialist for a checkup as soon as possible to avoid delaying the condition.