My friend lost her bladder control in front of me. Is she okay?

A very good friend of mine and I were walking today, and all of a sudden she stopped and blurted out "Oh my God!" and just lost her bladder control right there on the sidewalk. She was wearing a skirt, and it just happened very suddenly and all at once, almost like when a pregnant woman's water breaks. Obviously she was humiliated, but I really didn't blame her at all and was very unphased by it, though I couldn't tell if she believed me when I told her that I really did not care (I do regret using this choice of words, as I DO care about her health and her emotional state after something like this). She began to say something like "I think I may have a problem... I'm so sorry," but didn't go into any more detail, and I of course wasn't going to pressure her.

I feel bad for her, and I really don't see her or our friendship any differently as a result of this, but I am a bit concerned for her health, since she is a young woman in her 20s and this sort of thing shouldn't be happening. Anyone have any experience with something like this?