A urine collection device 1 comprises a collector 2 to collect urine voided by a user, first and second outlets 3, 4 to allow urine to drain from the device, the first outlet 3 being adapted for connection to a receptacle 5 for a urine sample, and the second outlet 4 comprising an overflow outlet. A diverter device 6 is provided having first and second operative states, such that in a first state the diverter device 6 allows urine to flow through the first outlet 3 to the receptacle 5 for collection of a forestream sample, and in a second state the diverter device 6 prevents flow to the first outlet 3 and allows flow to the overflow outlet, the diverter device 6 being unable to return from the second state to the first state. The collector 2 is preferably a funnel 7 whose open lower end 11 forms one of the outlets, and also has the other outlet in the funnel wall. The diverter device comprises a membrane 30 breaking after contact with liquid.
