Should stems be left on oranges?

It is generally not necessary to leave the stem on an orange. In fact, it is more of a personal preference. Some people prefer to leave it on, while others prefer to remove it before consuming the orange. There is no scientific evidence to suggest that leaving the stem on has any impact on the flavor or nutritional content of the orange. The stem is mainly used to attach the orange to the tree, and it does not serve any specific function after the orange has been picked.