• Former President Joe Biden completed a round of radiation therapy for prostate cancer.
• He rang a bell to signify the completion of his treatment, a common practice in cancer care.
• Biden's cancer is an aggressive form, diagnosed with a Gleason score of 9 and metastasized to the bones.

Former President Joe Biden has successfully completed a round of radiation therapy to treat an aggressive form of prostate cancer. According to a spokesperson, he finished the treatment Monday at Penn Medicine Radiation Oncology in Philadelphia, which lasted several weeks. The former president, who turned 82 this month, rang a bell—a symbolic gesture marking the end of a treatment phase—accompanied by staff from his medical team, according to CBS News.

His daughter, Ashley Biden, shared a video on her Instagram, captioned, "Rung the Bell! Thank you to the incredible doctors, nurses, and staff at Penn Medicine." She also described her father as "so damn brave throughout his treatment," illustrating the family's support during this challenging time, according to ABC News and The Hill.

Biden was diagnosed with this aggressive cancer in May, characterized by a Gleason score of 9, indicating a high risk. His cancer diagnosis includes metastasis to the bones but the cancer appears hormone-sensitive, which facilitates treatment management. There is currently uncertainty whether he will require further radiation, as assessed by his medical team, according to AA and ABC News.