There is a round thing inside the chest, generally speaking, there are often the following situations: First, young female patients, the breast is good for fibroids, which is the most common benign lesions of the breast in women. If the size of the fibroid is small and does not cause swelling and pain symptoms, it can be closely observed for the time being and does not need to be surgically removed. If the size of the fibroid increases and the patient experiences breast pain, it is recommended that the patient have the fibroid removed to avoid serious complications. Elderly female patients often have malignant tumor of breast, which can be manifested as round lumps inside the chest. At this time, patients can improve the magnetic resonance and molybdenum target examination of the chest to clarify the nature of the lesion, and then perform radical surgery for breast cancer as early as possible, plus lymph node dissection. After surgery, combined with chemotherapy treatment, the residual cancer cells in the body can be killed to prolong the patient’s life.