as you know i have no way of seeing or examining you. i have only your description to go on. one possibility would be a sebaceous cyst ; perhaps a cyst that is secondarily infected. these oil gland cysts are quite common in this area but you will need to see a medical provider so that you can be properly examined and treated. you have had this for a month so it would be in your best interest to check in checked out so you will not have to worry.
ingrown hair or std? . a month ago i noticed a lump right between my thigh and groin about the size of a pea. it had a slight white discharge followed by blood. after a week or so it disappeared. i assumed it was an ingrown hair or something of that nature but just a few days ago another lump has appeared on the other side. it is sore if you touch it but otherwise doesn't hurt. also it isn't all that close to the vaginal area. there is no discoloration in the skin. ingrown hair or something worse?