Seven-month-old babies with red blood in the whites of the eyes need to be treated according to their causes, such as physiological factors, bacterial conjunctivitis, viral conjunctivitis, etc., and after diagnosis, choose the general treatment or medication and so on. 1. Physiological factors: babies cry for a long time, which may lead to capillary expansion and congestion, resulting in seven-month-old babies with red blood in the whites of the eyes. This phenomenon does not require special treatment, usually not accompanied by other discomforts, it is recommended to try to avoid the baby crying, wait until the capillary contraction can gradually disappear. 2. Bacterial conjunctivitis: seven months baby red blood in the white of the eye may also be bacterial conjunctivitis, accompanied by increased secretion, foreign body sensation and other phenomena, the treatment can choose antibiotic drugs, such as tobramycin eye drops, and do a good job of eye care, to avoid the baby rubbing the eyes. 3. viral conjunctivitis: viral conjunctivitis can lead to seven months baby eye white with red blood, can be accompanied by tearing, photophobia and other phenomena, the treatment can choose acyclovir gel topical, and also need to avoid the baby rubbing eyes. There are many reasons why a seven-month-old baby has red blood in the whites of his eyes, and if he can’t get relief for a long time or if he cries more than once, he should consult a doctor in time to avoid delaying the treatment of his condition. It should be noted that the drugs should be used under the guidance of the doctor, not blindly self-medication.