Often pull a white line from the corner of the eye, the white line is mostly the secretion in the eye, may be due to bacteria, viruses, fungi and other pathogenic microorganisms infected eye caused by inflammatory reaction, it is recommended to go to the regular hospital ophthalmology for examination. Clinically, the causes of this symptom mainly include conjunctivitis, dacryocystitis and dry eye, etc. 1. Conjunctivitis: it may be caused by pathogenic bacterial infections, or it may be caused by external stimuli, allergies and other factors. Inflammatory stimulation will lead to an increase in conjunctival secretion, which can be white, watery, plasma and mucous secretion, and may appear to pull a white line from the corner of the eye. It is usually accompanied by eye discomfort such as itching, redness and pain. If the above symptoms occur, it is recommended to consult a doctor in time, you can take the eye secretion for drug sensitivity test, according to the results of the test, follow the doctor’s instructions to choose the appropriate drug treatment. Clinical commonly used levofloxacin, tobramycin and other eye drops anti-inflammatory treatment, the presence of viral infections can be used ganciclovir, acyclovir and other eye ointment. Patients should pay attention to eye hygiene, personal belongings are not shared, so as not to infect others; 2, dacryocystitis: dacryocystitis can also cause an increase in eye secretions, the corners of the eyes can be pulled out of the white line-like secretions, generally due to the nasolacrimal duct obstruction leading to tear retention formation of inflammation, there can be tearing performance. When the inner canthus is pressed, a large amount of secretion will be overflowed. Diagnosis can usually be helped by observing the symptoms during tear duct flushing. Saline can be used to flush the tear ducts under the guidance of the doctor, together with antibiotic eye drops to relieve the symptoms, such as levofloxacin, moxifloxacin, etc.; 3. Dry eye: patients may have symptoms such as dryness, burning and itching of the eyes, which can usually be relieved in humid environments, and the secretion increases, and straining of secretions may occur. The etiology of dry eye is more complex. Symptomatic treatment should be actively pursued while removing the cause, such as using artificial tears to moisturize the eyes and applying anti-inflammatory eye drops to reduce the inflammatory response, thus reducing the secretion. For more severe cases, surgical treatment may be required to resolve the dry eye problem through gland transplantation.