Two-year-old babies sometimes roll their eyes upward, and its common causes mainly include physiological factors, epilepsy, and multiple tic disorders. 1. Physiological factors: If parents usually roll their eyes at the baby, then the baby also imitates, so it leads to the baby rolling his eyes. If the baby’s eyes get into something or the baby looks at electronic products for a long time, which leads to eye discomfort, eye rolling will also occur. 2. Epilepsy: When a child has a seizure, the rolling of the eyes will also occur, and there will also be twitching of the body, and even foaming at the mouth. 3. Multiple Tourette’s Disorder: If the baby has other involuntary movements besides eye rolling, such as clearing the throat, blinking and sniffing, it is necessary to pay attention to the situation, and the baby may have Multiple Tourette’s Disorder. These symptoms are usually exacerbated by stress, anxiety, or a cold. In conclusion, if your baby rolls his/her eyes upwards with other symptoms, it is recommended that he/she should go to a regular hospital in time to avoid delaying his/her condition.