In pics | World leaders who have diagnosed with cancer - Joe Biden, King Charles and more

Former U.S. President Joe Biden has been diagnosed with an "aggressive form" of prostate cancer. The disease has now spread to his bones, his office announced in a statement on Sunday (May 18). The statement said Biden was diagnosed with "prostate cancer, characterized by a Gleason score of 9 (Grade Group 5) with metastasis to the bone."

In 2024, King Charles was diagnosed with cancer. However, the specific type of cancer has not been publicly revealed. The diagnosis came after he was treated for a benign enlarged prostate. The monarch has been undergoing treatment.

In 2015, former US President Jimmy Carter was diagnosed with metastatic melanoma, a type of skin cancer that had spread to his liver and brain. Carter underwent surgery and treatment to fight the disease. He passed away on December 29, 2024, at the age of 100.

During his final year as president in 2001, Clinton was diagnosed with basal cell carcinoma, a type of skin cancer. The diagnosis was made during a routine physical examination. However, this type of cancer is easily treatable, and Clinton underwent surgery to remove the cancerous tissue.

Reagan, the 40th president of US, was diagnosed with colon cancer in 1985 while still in office. He fully recovered after undergoing surgery to remove a portion of his colon.

In 2013, former Venezuelan President Hugo Chavez died of respiratory failure after his cancer metastasised to his lungs, as per sources. He was initially diagnosed with cancer in 2011 in the pelvic region, and later underwent surgery to remove a "baseball-sized" tumour.