Provided is a bladder drainage aid which attaches to the end of Foley Catheter and removes the need for a catheter bag. In a preferred embodiment, the device is a spring-loaded valve with an inflow tube and an outflow tube. The inflow tube connects to the external end of a catheter. The outflow tube can be aimed by the patient. When pressed, the valve opens, allowing the fluid to flow there through. When released, the piston of the valve cuts off fluid flow. The valve cap allows ease of use and the device can be operated with two fingers of one hand. The patient can wear the drainage aid discretely and empty the bladder directly and discretely, such as into a toilet.