Children occasionally play with cell phones generally do not cause harm, if long-term play with cell phones may have a certain impact on eyesight, personality, spinal development and so on. 1. Vision: If children play with cell phones for a long time, the first thing to be affected is the eyes. Because the cell phone screen is small and colorful, flashing faster, easy to produce visual fatigue, eye fatigue, etc., may have an impact on vision, causing children’s eyesight loss. 2. Character: If children play with cell phones for a long time, the lack of interpersonal communication with the outside world can easily lead to introversion, isolation and so on. 3. Spinal development: as children are growing, bones are not yet well developed, long-term sitting or lying down to play the cell phone may make the spine is damaged, resulting in stooping and hunching phenomenon. Long-term play cell phone for small children is still a lot of harm, it is recommended to try to avoid letting small children long-term use of cell phones, if any discomfort is recommended to seek medical attention in a timely manner.