Medical washing gun

The utility model provides a medical flushing gun which comprises a liquid inlet pipe, a handle and a flushing pipe. A channel and a hollow cavity for penetrating through the liquid inlet pipe are arranged in the handle; the liquid inlet pipe is connected with the flushing pipe after penetrating through the channel and the hollow cavity; the handle is provided with a step under the hollow cavity; a locking wheel is arranged in the hollow cavity; the outer edge at the lower end of the locking wheel is in contact with the liquid inlet pipe; and the rolling shaft of the locking wheel is arranged in a groove on the inner wall of the handle. The utility model can avoid the pollution of a gun body to flushing liquor medicine, and has the advantages of simple structure and convenient use.