If there is a particularly yellow and itchy eye, it is most likely caused by an infection. There can be acute conjunctivitis, a bacterial infection that causes conjunctivitis, or it can be an inflammatory reaction of its own. In addition, people with allergies can also have more eye stool, which is thinner and not particularly abundant, but this is accompanied by respiratory symptoms, such as cough, cold, runny nose, and more eye stool secretion, which is a symptom of allergy in the conjunctiva. In addition, some patients with dry eye can have more eye stool and lack of water lubrication, so they get up in the morning with dry eye stool, and different causes can cause different eye stool to appear.