Inexplicably swollen eyes can be seen in normal people, but also may be conjunctivitis, blepharitis and other diseases caused by the patient should consult a doctor in a timely manner, to clarify the cause of treatment. 1. Physiological situation: normal people in the late night, a lot of water, long time staring at the electronic equipment will appear after the eyes are swollen, such people should pay attention to rest, improve the bad habits. 2. Conjunctivitis: Inflammation of the conjunctival tissue caused by pathogenic microbial infections, allergies, etc. can also induce eye swelling, and the patient will also have redness in the whites of the eyes, pus, tears, such people should pay attention to rest, and if necessary, under the guidance of the doctor to use erythromycin, etc. for treatment. 3. Blepharitis: Inflammatory diseases caused by infection of the eyelid glands can also lead to eye swelling, such people also have red, swelling, heat, pain, should do a good job of local care, to keep the local dry and clean, and follow the doctor’s instructions for the application of antibiotic drugs, such as levofloxacin, etc., the formation of abscesses need to be incised and drained. The eyes are inexplicably swollen, after rest does not see relief, it is recommended to consult a doctor in time to deal with.