Hypertrophy of the intervesical ridge is one of the clinical manifestations of bladder neck contracture. Bladder neck contracture is an important bladder neck obstruction problem. The bladder neck is defined as a tubular section of the urethra extending 1 to 2 cm in length from the internal urethral orifice into the urethra. It includes the internal sphincter, but the internal sphincter is not the entirety of the bladder neck. Contracture of the bladder neck can be congenital or acquired. Congenital cases often have no clear cause other than typical local pathological changes and are more common in men; acquired cases are often due to local chronic inflammatory conditions such as posterior urethritis, prostatitis, and deltoiditis, and the incidence is not lower in women than in men. Congenital cases are most often seen in children and often have urinary disturbances before the age of six, but it is not uncommon for them to develop after the age of 20 or 30. The diagnosis of intervesical hypertrophy is based on the history of dyspareunia as the main clue. Therefore, we should ask for details of the micturition disorder. During physical examination, attention should be paid to the presence or absence of bilateral renal masses, palpation and percussion, and whether the bladder is bulging. However, cystourethroscopy and X-ray are required to confirm the diagnosis of this disease. 1.Intravenous urography Intravenous urography (IVP) is a diagnostic test that allows the kidney, ureter and bladder to be visualized by intravenous injection of contrast agent, and is a commonly used test in urology and gynecology. 2, cystoscope Cystoscope, a kind of endoscope, shape and urethral probe similar, electroscopic sheath, inspection speculum, disposal and ureteral cannula speculum and the core of the four parts constitute a set, with electrocautery, cutter and biopsy forceps, etc..