There are risks associated with any surgery, and the amount of risk associated with thymoma surgery depends on the degree of tumor invasion, the size of the tumor, etc. and cannot be generalized. Thymoma itself is located in a relatively fixed anatomical location and is in a zone of insecurity. Surgery for thymoma is relatively safe overall, and the risk of surgery needs to be determined in relation to the degree of invasion and size of the lesion. If the thymoma tumor is large and at the same time invasive, invading part of the blood vessels, it will increase the difficulty of the surgery, which is a major surgery and relatively high risk; if the thymus tumor tumor is small, with clear boundaries, and has not invaded the blood vessels, it will be less difficult to perform the surgery, and the relative risk of surgery will be small. In conclusion, thymoma surgery is a relatively safe surgery, and complete resection can be achieved through different incisions and different approaches, but there is a risk of recurrence after surgery, and regular review should be done.