I have a a hard, sore lump on the skin outside of my vagina. It started out as a sore spot, but today I feel a hard lump. Could this be an ingrown hair or boil? It does not have a head on it like a pimple, but feels sore like one. It looks slightly red to me. Of course, I have been poking at it, so I am not sure if that is why its red.Not sure if I am overreacting or if I am ignoring something serious like cancer. I am married & in a monogamous relationship, so std's aren't a concern. 12 years ago I had precancerous cells removed from my cervix. Since then, I have been very concerned about cancer & keep a watchful eye on things. What's your opinion? I am 6 feet tall & weigh 200. 38 years of age.