The last time I shaved I used an older razor... Then I noticed a couple days later that I had a white bump near the lip of my vagina.. I was hoping you would be able to tell me what it is

It could be razor burn but I think razor burn is usually red because it is irritated. Could it possibly be an ingrown hair that is not infected ( I shave everything except my eyebrows and hair due to a hair issue and I occasionally get ingrown hairs that do not get red and infected or cause pain) if it does not go away maybe you should get it looked at. Or if it causes intense discomfort