Children in emotional or eye stimulated by the outside world, tear secretion will increase sharply and tears, this is a normal phenomenon, but in a calm state, the child will also tears should pay attention to find the cause and timely treatment. The main causes of pediatric lacrimation are the following: 1. Neonatal lacrimation is the most common cause of pediatric lacrimation, the incidence of about 5% to 6% of newborns, the onset of monocular is common. The main reason is that the lower end of the nasolacrimal duct has not developed well for a period of time after the child is born, and is closed by a layer of residual membrane causing tear duct obstruction and secondary bacterial infection, resulting in tears and pus. A simple way to determine this is to use your finger to press the skin of the corner of the large eye and see the yellowish white pus flowing from the corner of the large eye, if it is an acute inflammatory attack, the skin of the corner of the large eye is red and swollen and the subcutaneous lumps, and the child cries and is upset because of the pain. If this condition is not treated in time, the abscess may break down and affect the beauty, or complicate the orbital cellulitis and blindness, or even the inflammation spreads to the skull and endangers the life. Treatment: In the acute stage, systemic and local antimicrobial therapy is the main treatment; in the chronic stage, the main treatment is to massage the skin slightly below the corner of the large eye (lacrimal sac area) to encourage the opening of the lower nasolacrimal duct, together with antimicrobial eye solution (such as Tobias eye solution) to spot the eye, most children can be cured. If the above treatment is not effective, surgery is required. This is a hyperacute bacterial conjunctivitis caused by gonococcal infection, also known as “gonococcal conjunctivitis” in medicine. Generally 2 to 4 days after birth, mainly due to contamination by vaginal secretions of the mother with gonococcal vaginitis at birth. This disease was more common before liberation, and many double blindnesses were caused by this disease. After the liberation, this disease has basically been eliminated because of the outlawing of prostitution, but in recent years, with the “resurgence” of various sexually transmitted diseases, the number of such patients has gradually increased, and there is a tendency to make a comeback, which is worth warning. The disease develops rapidly, with photophobia, lacrimation, high edema of the eyelids and conjunctiva. The eye discharge is initially plasma, and then quickly turns into purulent, with large amounts of yellow pus flowing continuously from the lid fissure, accompanied by lacrimation and difficulty in opening the eyes, which can be complicated by corneal ulceration and corneal leukoplakia within a few days or even hours in severe cases, seriously affecting vision and even leading to blindness due to corneal ulcer perforation and total ophthalmitis, sepsis, etc. This disease can lead to serious consequences if left untreated, so early diagnosis and treatment are important. 3. Congenital entropion of the eyelid is also more common in children with lacrimation caused by irritation of the cornea and conjunctiva. This kind of child is often accompanied by increased blinking, inattentiveness, and constant rubbing of the eyes with the hands. Parents can look closely at their child’s eyes and see the eyelashes fall back onto the eyeball like a brush and rub the eyeball. Treatment: If the impingement is not obvious and the irritation is not too severe, you can observe it and most children with congenital entropion can have their symptoms improved or eliminated when their eyeballs grow up. If the impingement is obvious, the irritation symptoms are heavy, or even the cornea is bruised, then an early lid entropion correction surgery is needed. 4. Congenital atresia or absence of lacrimal dots and ducts This is a relatively rare congenital abnormality in the development of the lacrimal ducts, but the symptoms of lacrimation are more severe and the lacrimation continues after birth, but the good news is that it is usually not complicated by bacterial infection, so there is no flow of pus. A simple differentiation from neonatal lacrimal sacculitis is the absence of pus flow by pressing on the large corners of the eyes. Careful parents can find a healthy eye, about 3 mm from the corner of the eye at the junction of the skin and red mucous membrane, the upper and lower eyelids are visible each a small protrusion, the small protrusion can be seen in the center of a small hole, this small hole is the tear dots. Children with this eye disease do not have these two small holes, or the holes are not open. Such patients need surgery to solve the tearing problem. 5. Other causes such as conjunctivitis, keratitis, blepharitis, lacrimal glanditis, congenital glaucoma, etc. can also cause tearing in children. For these causes of tearing, the primary disease is usually more obvious and easily identified. Treatment is mainly directed at the primary cause. Usually the tearing symptoms will be eliminated after the primary disease is cured. The above mentioned is only some basic knowledge about pediatric tearing, parents can use this knowledge to make only a general judgment about their children’s condition. In fact, the causes of tearing in children are complex, and treatment methods vary, and need to be seen by experienced doctors. If you find that your child has similar tearing symptoms, you should go to the hospital for diagnosis and treatment as early as possible without delay.