Causes of<unk>  include: * Bladder stone and renal stone * Benign prostatic hyperplasia *<unk>  as a congenital disorder. Congenital<unk> <unk>  as a congenital disorder results in oligohydramnios which in turn can lead to the Potter sequence of atypical physical appearance. Pulmonary hypoplasia is by far the main cause of death in the early neonatal period for children with congenital lower<unk> . Fetal surgery of congenital lower<unk>  seems to improve survival, according to a randomized yet small study. Sitting voiding position A meta-analysis on the influence of voiding position on urodynamics in healthy males and males with LUTS showed that in the sitting position, the residual urine in the bladder was significantly reduced. The other parameters, namely the maximum<unk>  flow and the voiding time were increased and decreased respectively. For healthy males, no influence was found on these parameters, meaning that they can urinate in either position.
Urinary tract obstruction
Bladder outlet obstruction
Prostatic congestion
Urethral stricture
Ureteric stricture
Obstructive uropathy
Hydronephrosis
Pyonephrosis