Emergency services were called to the junction of Hydes Road and Hackwood Road, in Wednesbury, at around 9.18pm on Tuesday.
The collision involved a motorbike and a car.
The motorcyclist, a man, suffered potentially serious injuries and was taken to hospital.
A spokesman for West Midlands Ambulance Service said: "We were called by the police to a road traffic collision involving a motorcyclist and a car at the junction of Hydes Road and Hackwood Road, Wednesbury at 9.18pm on Tuesday.
"One ambulance attended the scene and treated a motorcyclist, a man, who had suffered potentially serious injuries.
"He was conveyed to Sandwell Hospital for further checks."