How are LUT lithiasis?

- The stones of the lower urinary tract (bladder, urethra) are more rare. - The bladder stones are most often the fact of a subvesical obstacle (benign prostatic hypertrophy, cervical sclerosis), or an intravesical foreign body (son?(fils), bladder catheter balloon). - They are usually found in front of functional urinary signs: hematuria, urinary burns, pollakiuria. -In contrast, in well-targeted populations, lithiasis of the lower urinary tract is very common. This is mainly the case of neurological patients with severe motor impairment: quadriplegia, advanced multiple sclerosis ...