Question
Why does a little boy’s mouth twist to the left when he smiles, and it doesn’t hurt or feel unusual? When he’s not smiling, it seems that his corners of the mouth aren’t symmetrical either, but it’s not very noticeable. It’s only when he smiles that the tilting becomes very obvious.
Answer
Based on your description, the child’s mouth tilting during laughter may be a sign of “Temporomandibular Joint Syndrome.” Since no physical examination has been conducted, for the child’s health, it is recommended that you take him to the hospital for a detailed check-up to confirm the diagnosis. At the same time, be aware that it may also be a problem with dental function or long-term one-sided chewing leading to a misaligned jaw. It is advisable to have a check-up at a regular dental clinic. The above suggestions are for the question “Why does a little boy’s mouth tilt to the left when he smiles,” and I hope they are helpful to you. Wishing you health!