The redness of the inner corner of the eyes of infants should be considered to be caused by eye inflammation such as conjunctivitis, keratitis, as well as eye allergies and trichiasis. 1. Eye inflammation: keratitis, conjunctivitis and other eye inflammation can lead to eye redness, stimulated by inflammation, eye pain, tearing and other conditions. 2. Eye allergy: related to contact with certain allergens, such as pollen, mites, dust, etc. Repeatedly stimulated by allergens can cause allergic edema, congestion, thus causing eye redness. 3. Inverted eyelashes: mainly refers to the growth of eyelashes upside down, if left untreated, may irritate the corners of the eyes, causing redness at the corners of the eyes, and will be accompanied by tearing, pain and other symptoms. Redness of the corners of the eyes of infants, in addition to the above factors should also be considered as a result of sleep deprivation, eye trauma and other factors, it is recommended to go to the hospital for examination, to clarify the cause of the disease and then standardized treatment.