I noticed a pea size bump on the outside upper left portion of my labia minora about 2 days ago. There is no evidence of blistering, pustule of any kind. There is no evidence of any white head like appearance. It is just a bump. No discoloration, other than maybe alittle redness. This is the only one I have. It is slightly tender to touch. I have never experienced this before. The last pelvic exam I had was about a year ago and they drew blood. They did not indicate there was any evidence of STDs. Can you help? I have only been sexually active with my husband of six years.