Hi my boyfriend just showed me what Looks like a freckling on blood under the skin, almost like a blood blister but it s not raised. It s oblong in shape. If I could send a picture I would. He and I both don t have any s STIS. I ve had blood tests declaring so. He says he can feel my IUD string sometimes and that it hurts him but this mark on the head of his penis does hurt to the touch. Could it just be from rubbing on my IUD string?
Hello.  This is a Force spot--totally benign and not an STD.  They usually disappear on their own and don't require any treatment