There are many different reasons for the redness of your baby’s lower eyelids, and specific analysis is needed. If the lower eyelid is red at birth and the border is clear, you should consider whether there is a congenital hemangioma, also known as a strawberry nevus, which is a benign lesion that can be treated with laser, freezing or sclerotherapy injections under local anesthesia when the baby grows older. In some cases, the redness of the eyelid is due to local inflammation of the lid gland in the corresponding area, such as chalazion infection or molluscum contagiosum, which can be treated with local antibiotic eye drops and local hot compresses and, if necessary, long-acting hormonal ointment. Some eyelid redness is caused by the baby’s own fingers rubbing the eyelid, or by the caregiver rubbing the baby’s eyelid with a finger or other object while caring for the baby, resulting in a brief redness of the skin in response to stress, which can be observed for a period of time to see if the redness fades naturally. Another very common cause is an allergy to the baby’s eyelids. If the mother eats foods that can trigger allergies during breastfeeding, eczema can occur in breastfed babies, including babies who start receiving complementary foods, and if a new complementary food is added that causes allergies, eyelid flushing can occur. If it is an allergy, usually in addition to the redness of the eyelids, you can also find a flush-like rash on the forehead, nose, face, neck and elsewhere on the body. Treatment requires stopping breast milk or complementary foods and topically applying some skin care products for infant eczema. There are many reasons for the redness of the baby’s eyelids, and specific analysis of the problem is needed. Babies are too young and not very expressive, so I hope parents will take them to a specialist hospital for consultation at the first opportunity.