A cyst in the hymn layer which is colourless, blumpy. It shows no symptoms. It's not itchy, it disturbs me in no way. Had sexual contact with 3 partners and fearing that it might be a STD. Had intercourse but there was no sperm transfer. But din use a protection. I know STD won't cause symptoms In primary level. I suspect that it might be bartholin cyst but it's not that big, it's small. Recently studied STD at my classes so suggested this. Please do help me out in this.