Generally speaking, when a child is born with lacrimation, there may be the following causes: 1) neonatal lacrimal sacculitis 2) conjunctivitis. The following I explain to you the following: neonatal lacrimal sac: a. Etiology: generally the opening of the lower end of the nasolacrimal duct is open when the child is born, but a few children are still not open at birth, or blocked by epithelial debris, to the nasolacrimal duct does not work. The fluid in the lacrimal sac is stagnant, which can cause bacteria to multiply and cause lacrimal sac inflammation. Clinical manifestations: tearing, mucopurulent secretions in the conjunctival sac, especially in the inner canthus. The lacrimal sac area is locally elevated, and pressure on the lacrimal sac can lead to mucopurulent discharge from the tear dots. Third, treatment: first conservative treatment, and then according to the different cases for the following treatment: 1, point medicine + massage, eye drops antibiotic eye drops, while using the thumb to massage the tear sac, and to the nasolacrimal duct direction push pressure 2-3 times a day, 2-3 times a day, let the mother massage at home. 2.Rinsing Use a tear duct rinsing needle to inject fluid into the tear duct. 3.Probing method The above treatment is not effective, perform lacrimal duct probing surgery under local anesthesia Conjunctivitis: Mostly caused by bacterial and viral infections, antibiotic eye drops should be performed.