One year old babies with blue bags under the eyes may be caused by physiological factors such as crying at night, or pathologic factors such as trauma and allergic diseases. 1. Physiological factors. Due to the baby’s lack of sleep at night, crying more, which leads to blood circulation around the eyes, resulting in the phenomenon of blue bags under the eyes. Can also be seen in the hereditary cause of the green bags under the eyes. 2. Pathological factors. Caused by trauma, allergic diseases, heart disease and so on. (1) Trauma. Due to collision and other reasons, the baby’s eyes were traumatized, which led to the green bags under the eyes. (2) Allergic diseases. The baby suffers from allergic rhinitis, bronchial asthma and other diseases, in contact with pollen, dust mites and other allergens, will induce nasal congestion and other symptoms, affecting the sleep, thus appearing bags under the eyes green. (3) Heart disease. Babies suffering from myocardial defects, myocarditis and other heart diseases, the symptoms of green bags under the eyes will appear. One-year-old baby bags under the eyes, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.