Locating hood for judging position of lump in thoracic breast surgery

The utility model relates to an instrument for a thoracic breast surgery, in particular to a locating hood for judging the position of a lump in a thoracic breast surgery. The locating hood for judging the position of the lump in the thoracic breast surgery comprises a locating hood body which covers the outer surface of a breast, a teat cup is arranged in the middle of the locating hood body, a mammary areola area is arranged on the outer circle of the teat cup, and multiple oval locating rings are evenly arranged on the part, outside the mammary areola area, of the locating hood body. Through the locating hood, the position of the part needing to be cut can be clearly known in the surgery, the locating hood can also be used for training of doctors, the position of the area where a tumor of a patient is located can be easily reported at ordinary times and can be clearly written in a pathological report, even the patient can report the condition, and accurate data support is provided for reexamination of the patient in the future.