I experimented with urethral sounding today and experienced a small amount of bleeding.  The sound was small beginner and only went in about an inch and I didn't experience any pain. I noticed a drop of blood came out when urinating for a few hours after also but it doesn't hurt at all when urinating and the urine was clear after the initial drop of blood.  I also feel like I have to urinate frequently.  Is this serious or should I just let it heal on its own?