Frequent tearing after recovering from an eye injury may be caused by irritation of the lacrimal gland, damage to the surface structures of the eye, and injury to the tear duct. 1. An eye injury is likely to irritate the main lacrimal gland in the lacrimal fossa above the outer eyelid, resulting in an increase in daily basal tear secretion and untimely drainage through the normal tear duct, leading to frequent tearing. 2. When an eye injury affects the tear film or cornea on the surface of the eye, it disrupts the normal ocular surface structure, which may lead to dry eye symptoms caused by excessive tear evaporation, or it may result in inflammation of the ocular surface to stimulate tearing. 3. Injury to the eye may also injure the tear ducts and cause blockage of the tear ducts, so that normal tears cannot be discharged through the tear ducts, thus overflowing out of the eye surface and causing frequent tearing. If you have frequent tearing after an eye injury, you should first go to the hospital to check the cause of the problem and get the right treatment.