Causes of tearing in the wind include lacrimal obstruction, functional tear overflow, corneal hypersensitivity, and trachoma. Common causes of lacrimal duct obstruction include congenital anomalies and developmental factors, inflammation, trauma, foreign body obstruction, lacrimal sac tumors, nasal and paranasal sinus tumors, excessive and improper lacrimal duct irrigation and exploration, and medically induced injury from surgery. The site of lacrimal duct obstruction can be determined by lacrimal duct irrigation test and x-ray lacrimal oil iodography. Depending on the cause of the lacrimal obstruction, different treatment options such as lacrimal duct probing and placement, lacrimal duct laser angioplasty, nasal lacrimal sac anastomosis, etc. can be chosen to restore or establish lacrimal drainage channels. Functional lacrimal overflow is a condition in which the tear duct is open and the tear dots are in normal position, but tears cannot be drawn into the tear duct and overflow because of the weakened orbicularis muscle and insufficient negative pressure in the tear duct. There is no particularly effective treatment for functional lacrimal overflow. Corneal hypersensitivity is due to congenital causes or to the instability of the tear film in dry eyes, and the effect of external stimuli on the cornea is enhanced, resulting in increased reflex tearing. The symptoms can be relieved by wearing glasses to reduce external stimuli and artificial tear drops to stabilize the tear film. Tearing in the wind is also a symptom of conjunctivitis, which can be treated with anti-bacterial, anti-viral or anti-allergy eye drops depending on the cause. In conclusion, lacrimal obstruction, functional tearing, corneal hypersensitivity, and conjunctivitis are all possible causes of wind-driven tearing. Patients should visit an ophthalmologist for an examination to identify the cause and treat it symptomatically.