Baby finger red may be related to trauma, eczema, contact dermatitis and other causes, need to be further differential diagnosis by the doctor. 1. trauma: if the baby’s fingers are squeezed and other external injuries, can lead to local soft tissue swelling, bruising, finger redness and swelling phenomenon. 2. Eczema: If the baby’s finger suffers from eczema, skin erythema can appear, manifested as redness of the finger, on this basis, skin papules, blisters, oozing. 3. Contact dermatitis: If the baby’s fingers come into contact with certain irritating substances or allergenic substances, it can cause the body to have an abnormal immune response and the symptoms of redness of the fingers. It is recommended that parents take their children to the hospital in time to clarify the cause of the disease, under the guidance of the doctor for standardized treatment, so as not to delay the disease to the body to bring adverse effects.