Abstract: A shower head includes a fixation portion and a switch mechanism. The fixation portion has two diversion waterways that connect to an inlet waterway. The switch mechanism rotates the two diversion waterways. The first diversion waterway has a mutation cavity connected to a diversion hole. The mutation cavity has a flow straightener that water from the diversion hole collides in the flow straightener. The second diversion waterway has a first section and a second section with a larger outlet. A suction hole is disposed between the mutation cavity and the second section. When water flows out of the first diversion waterway, air enters the mutation cavity from the second diversion waterway through the suction hole, bubble water flows out of the first diversion waterway; when water flows out of the second diversion waterway, air enters the second section from the first diversion waterway through the suction hole.