Vasectomy, Vasectomy reversal, Penile implant insertion, Varicocelectomy, Doppler ultrasound, Penile rehabilitation, Te...sticular biopsy, Penile self-injection therapy, Intralesional injection therapy, Sperm collection for fertility treatment, Erectile dysfunction, Sexual dysfunction, Varicocele, Infertility, Hypogonadism, Peyronie's disease, Phimosis, Azoospermia, Hydrocele, Spermatocele