The symptoms and manifestations of conjunctivitis vary according to the onset and cause of the disease. In the early stage of conjunctivitis, patients may experience burning, pain, redness, swelling, photophobia and involuntary tearing of the eyes. Gradually lead to severe secretion increase, some conjunctiva will have blood spots and blood spots, lid conjunctiva surface will have a layer of grayish-white pseudomembrane, severe may also appear fatigue, headache, fever and so on. Symptoms of conjunctivitis can vary depending on the cause. Bacterial conjunctivitis is mainly conjunctival congestion, foreign body sensation, papillary hyperplasia, tearing, secretion of large quantities of pus; viral conjunctivitis is severe congestion of the eye, secretion of watery substances, conjunctival follicular hyperplasia, etc.; allergic conjunctivitis is characterized by tearing of the eyes, localized itching, accompanied by a runny nose, sneezing and so on. When the patient appears above symptoms should be taken seriously, timely to the hospital for treatment, so as not to delay the condition.