The presence of a hard lump inside the male urethra should be considered to be related to urethral polyps or scarring of the urethra, and may also be related to urethral stones, which can cause patients to feel resistance to urination. When this happens, the patient needs to go to the hospital in time for a clear diagnosis, and it is recommended to have an ultrasound examination of the penis. If the ultrasound examination of the penis reveals an occupancy, it is recommended that a urethroscopy be performed. Urethroscopy is a very accurate way to determine the nature of the occupancy in the male urethra by entering the urethra and observing it with the naked eye, but it is somewhat invasive.