How big is the male bladder?

Male bladder capacity is generally 350-500ml.

The bladder is a muscular sac organ that stores urine. Its size and wall thickness usually vary with the degree of urine filling. In general, male bladder capacity is 350-500ml. When the bladder is full of urine, it usually expands outward, compressing surrounding tissues and organs, thus producing the feeling of urination. At this time, male can control the contraction of sphincter to empty urine in the bladder. The bladder also maintains water balance and electrolyte balance in the body by regulating urine concentration and pH.