I'm worried because I'm not seeing any sperm when I masturbate, and I'm dealing with a kidney stone located at the junction of my urethra and bladder. Could this stone be blocking sperm flow or affecting it somehow? What's going on here?
once stones pass the bladder neck they will come down easily through urethra,, and if you are passing urine then they is no block there. Drink plenty of urine it will push any stones (small enough to pass bladder neck), will pass through urethra