Blocked tear ducts occur when the small tubes that drain tears from the eyes to the nose become obstructed. This blockage can lead to excessive tearing, as tears cannot flow properly. It may happen due to various reasons, including infections, inflammation, or congenital issues in infants. Symptoms of blocked tear ducts include watery eyes, redness, and discharge. In some cases, the condition can resolve on its own, but persistent issues may require medical intervention. Treatment options can include massage, warm compresses, or, in more severe cases, surgical procedures to open the blocked duct.