There are many reasons why patients come to the clinic with unexplained tearing, and the most common ones are outlined below: 1. The obstruction of the nasolacrimal duct can also lead to chronic dacryocystitis and pus; 2. Conjunctival laxity covering the tear dots; 3. Eyelid laxity and ectropion of the tear dots; 4. Lid gland insufficiency and increased reflex secretion of tears; 5. Nasal cavity disease blocking the opening of the nasolacrimal duct; 6. Overuse of the eyes leading to corneal epithelial detachment; 7. Receding eyelashes leading to eyelash stimulation leading to increased tear secretion. Have you been checked for tearing?