I have had bumps on my labia majora since my first child was born 6 years ago. My ob-gyn told me that they are cyst. They are usually not painful, but every now and then they become inflamed and swell. It is not the blister like bumps from herpes, but these are solid nodules, if you squeeze them there is solid material in it, they have never ruptured. I am concerned because it seems that I am getting more of them. Do you know what these may be?