The invention discloses a medical suction scraper. The key point of the technical scheme is that the medical suction scraper includes a functional part, a transmission part connected with the functional part, and a driving part arranged at the rear part of the transmission part. The functional part comprises a ball head with a suction hole and a rotating shaft arranged in the ball head and provided with a blade, and the transmission part comprises a housing, a transmission shaft located in the housing and connected with the rotating shaft, and a channel located in the housing and used for fester and slough to circulate. The rotating shaft is connected with the transmission shaft, the transmission shaft is connected with the driving part and driven by the driving part to rotate, and the housing is also provided with a suction machine connecting pipe for being connected with a suction machine. In the field of minimally invasive interventional therapy for breast abscesses, especially forthe surgical treatment of large complex refractory abscesses, the medical suction scraper embodies the minimally invasive and functional therapeutic concept of modern surgery, which not only guarantees the therapeutic effect and normal feeding of breast milk, but also shortens the treatment time, reduces the risk of recurrence, alleviates the patient's pain, maintains the beauty of the female breast as much as possible, and reduces the treatment cost.