The white stripes on the upper chamber of the baby’s teeth are mostly considered horse teeth, but the possibility of thrush cannot be ruled out, parents are advised to bring their babies to the doctor in time to make a clear diagnosis. 1. Horse’s teeth: horse’s teeth is a normal physiological manifestation of newborns, mainly due to the accumulation of epithelial cells or mucous gland secretions and the formation of small white particles, usually do not need special treatment, after a few weeks can disappear naturally. 2. Thrush: If the baby’s dental chamber is infected by fungi, white bumps may appear in the mouth, which are curd-like, and the surrounding mucous membrane is normal and not easy to wipe away. There may be other reasons for the white stripes on the upper chamber of the baby’s teeth, and it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.