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Hard pea sized lump appeared overnight next to vaginal opening
I am 19 weeks pregnant and a pea sized lump has appeared overnight just at the entrance to my vagina. It isn't painful, maybe just very slightly sore. I am not too worried as I had a sebaceous cyst under my arm years ago which just went away but will mention it to the midwife when I next go. I am told cancerous lumps do not just appear overnight. What does everyone else think and what could it be?