Mouth ulcers are actually the open wounds that spread around the mouth lining. Commonly mouth ulcers are not affected to the newborns. The size of ulcer is from few millimeters to few inches. Mouth ulcer is very painful so if you notice the initial symptoms of mouth ulcer in your baby, you should immediately consult to the doctor because the baby will not be able to bear this situation and never want anything to eat. The symptoms you might see are the clusters of sores or purple sores appear along the lips. The sores develop inside the gums, cheeks, lips or tongue. What causes mouth ulcers in babies? These are caused by a virus called “herpes simplex”. Here’s how these are affected: It can be caused due to the simple kiss. The sores are appeared as a canker sores caused by virus, stress or trauma. How can you identify the ulcers? As usual, the mouth ulcers appear on the mouth lining that includes the cheeks and gums inside the mouth. Here’s how you can ident