The need for a belly shot for breast cancer depends on the type of breast cancer patient, not every breast cancer patient needs a belly shot. Belly shots are indicated for pre-menopausal patients with positive hormone receptors or when malignant cells have spread. Post-menopausal breast cancer patients with positive hormone receptors do not need belly shots. Belly shot for breast cancer patients belongs to a kind of endocrine therapy, the injection is mainly ovarian function inhibitor drugs, commonly used clinically are goserelin and leuprolide for premenopausal hormone receptor positive breast cancer patients. The drugs can effectively inhibit ovarian estrogen production to stop the growth of cancer cells, thus reducing the risk of recurrence and improving the survival rate of breast cancer patients. In the case of postmenopausal breast cancer patients, belly shots are not required, only oral aromatase inhibitors such as letrozole and anastrozole, which can lower estradiol for the purpose of treating breast cancer. Breast cancer is a malignant tumor, after surgery, radiotherapy and endocrine therapy, regular postoperative follow-up is required, which is recommended to be performed every 3 months for 2 years, and every 6 months for 3-5 years, and after 5 years, annual review can be considered, and patients can also follow medical advice for regular review to clarify whether there is any recurrence of the disease.