Hanging hydrogen balloons on the bed for babies to see is dangerous, parents are not recommended to do so. Hydrogen itself is not toxic, but because hydrogen is flammable, so the hydrogen in the balloon will explode when it encounters an open flame, threatening the baby’s personal safety. So it is not recommended to hang hydrogen balloons on the bed for the baby to see. We can show the baby black and white cards, or put ordinary balloons on the wall for the baby to see. Parents hanging balloons in the baby’s bed is possible, but can not hang hydrogen balloons, ordinary balloons can be, and can not let the baby gaze for a long time, should be appropriate to pick up the baby to let him look at the things around him, to increase eye activity.