Detrusor hyperreflexia was found in 54 patients or 14.6% of 369 consecutive female patients referred for urinary incontinence and/or genital genital prolapse during a 2-year period. The dominant symptom was urge incontinence. The urological investigation consisted of a medium fill water cystometry in the supine position. 20 patients (37%) suffered from cerebral or pyramidal nervous disorders. The treatment of choice was pharmacological with parasympatholytica, methantheline bromide (Banthine®). The follow-up examination performed in 33 patients after 6 months treatment showed an improvement rate of 82%. The importnce of performing a cystometry in all female patients referred for urinary incontinence is stressed.