Free skin flap scalpel for patients with breast cancer

The utility model relates to a free skin flap scalpel for patients with breast cancer. In the prior art, during the operation on the free skin flap of a patient with breast cancer, the cutting operation often needs to be carried out repeatedly to not only bring much more pain to the patient, but also greatly reduce the operation accuracy and increase the error probability, as a result of the insufficient length of an existing scalpel. Meanwhile, the operation difficulty of medical staff is also increased and the operation result is therefore worse. The free skin flap scalpel for patients with breast cancer comprises a scalpel body and a scalpel handle, wherein the scalpel body is arranged on the scalpel handle. The two sides of the scalpel body are symmetrical and are sword-shaped. The front end of the scalpel body is provided with a triangular tip and both the two sides of the scalpel body are provided with a blade part. The scalpel handle is in a flat shape. The head end of the scalpel handle is expanded an