M a virgin. i have a small vaginal opening..only one finger can fit in. is my vagina tight?

Vaginas stretch: Vaginal openings stretch, sometimes a lot. So, just because a vaginal opening fits one finger doesn't mean it is tight. However, if one says that no matter what she does, no matter how much she tries to stretch it, she still cannot get two fingers in at the same time (and she is an adult), then the opening might be tight. Her primary care doctor can easily check.

Be examined: From your description, yes. The vagina should be an area that is able to relax the muscle. There may be an anatomical reason yours is so tight. All the best.