The reasons for baby’s uneven teething include the following: 1. When both parents have uneven teeth alignment, they may inherit it to their children, making the baby’s teeth crowded; 2. Babies like to eat softer food, jawbone development is shorter, can not fully accommodate all the teeth, appearing crowded teeth, uneven, etc.; 3. The order of eruption of milk teeth is disturbed, resulting in uneven teeth, such as premature eruption of milk lateral incisors and milk molars, and occupy the gap between the teeth, so that the milk cusp can only favor the lip and cheek side growth; 4. Babies often lick their teeth with the tip of the tongue, which will push the tooth body to the lip and cheek side shift, appearing uneven teeth.