Firstly, the treatment of rectal cancer with moxibustion needs to be differentiated. Everyone has a different constitution. If someone has rectal cancer and has a heat-type constitution, it is not recommended to undergo moxibustion treatment. However, if the patient has a cold-type constitution, moxibustion treatment can be performed. The second issue is where exactly to apply the moxibustion. It can be done on the abdomen, around the navel, where there are acupuncture points, all suitable for moxibustion. For example, the navel, which corresponds to the Shenque point, can be treated with moxibustion. Other points above and below the navel, like Guanyuan and Qihai, can also be used for moxibustion.