Tears in the eyes of the elderly may be caused by physiological factors, or it may be caused by obstruction of the tear duct, conjunctivitis and other factors. 1. Physiological factors: when the elderly are older, the eye muscles become flaccid, the lower eyelid is ectropion or the tear duct is ectropion, resulting in the tears can not enter the tear duct smoothly, and thus the patient may have overflow of tears. 2. Lacrimal duct obstruction: patients with lacrimal duct obstruction because of poor tear drainage, tears can not be discharged smoothly through the tear duct, patients can appear tearing performance, this situation is mostly seen in elderly women. 3. Conjunctivitis: Conjunctivitis and other inflammatory diseases patients because of inflammation stimulation, resulting in increased secretion of the lacrimal gland, resulting in tearing. It is recommended that patients with frequent tearing should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.