There are a few common problems that can occur with toilet handles. One such problem is that the handle may break off from the toilet. This can happen if the handle is not sturdy or if it is made out of a weak material. Another problem that can occur is that the handle may loosen over time and start to wobble. This can be dangerous, as it could cause someone to fall and injure themselves. Additionally, the handle may become difficult to operate over time, as it becomes dirty or covered in grime.