Hello Im 18 y/o and I just noticed a single red blister on the side of my scrotum its mildly itchy and gets irritated easy when it rubs on the side of my leg. Ive had sex once but it was more than half a year ago so I dont think its an std but Im not for sure. I am pretty active at my job so I though it may be from sweat, heat, or even something with the hair rubbing or pulling. Please help Id really appreciate it.
It is likely to be jock itch. If is associated with intense itch and no to mild pain.... probable it is jock itch.... you can over the counter medications for it. Your active life and so probably of excessive sweat can be the reason for it.it does not look like an STD to me.