Yes. There are no medically proven risks to microwaving. Microwaves rarely leak radiation, and if they do, it's in extremely small amounts that are virtually undetectable.
If you're concerned, you might want to make sure your microwave is working properly and isn't leaking or damaged. Researchers have determined that if a microwave does leak any radiation, it diminishes significantly with distance from the microwave. In other words, if you have any concerns, stand a few feet away instead of immediately in front of the oven.