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Ozzy Osbourne’s official cause of death revealed: heart attack, Parkinson’s and coronary disease

The official cause of Ozzy Osbourne's death was out-of-hospital cardiac arrest, acute myocardial infarction, coronary disease, and Parkinson’s with autonomic dysfunction.

Ozzy Osbourne passed away on July 22, 2025, at the age of 76, at his Buckinghamshire home. His official death certificate, filed by the family, confirmed the cause of death as an out-of-hospital cardiac arrest due to an acute myocardial infarction, with underlying coronary artery disease and Parkinson’s disease with autonomic dysfunction listed as contributing factors. The record also indicated that Parkinson’s-related dysfunction had progressively deteriorated his health.

Osbourne had been diagnosed with Parkinson’s in 2020, and in the following years faced increasing challenges to his motor and autonomic functions. His medical history included complications from a fall in 2019 that resulted in spinal injuries and further surgical procedures. Despite this, he remained active until shortly before his death, performing his final live concert on July 5, 2025.

His death sent shockwaves through the global music community and prompted a series of tributes in his hometown of Birmingham, including a public procession on July 30 and a private burial at his estate. Thousands gathered to honor the vocalist who redefined heavy metal over the course of five decades.

The combination of cardiac issues and long-term neurodegenerative illness presented a complex clinical scenario. In Osbourne’s case, these conditions had increasingly limited his physical capabilities, yet he never completely withdrew from music or his public presence.

With his passing, Ozzy Osbourne’s legacy becomes a permanent fixture in music history. His impact transcends genres and generations, and his departure marks not only the end of a career, but the close of an entire era in heavy metal.