The Dangerous Toll of Steroids: A Clinical Case from the US
After a decade of secret use, a man developed heart failure due to veterinary steroids. Doctors are now issuing a public warning.

An Alarming Diagnosis: When Hormones Destroy the Heart
A 50-year-old man from Massachusetts, who considered himself a fitness enthusiast, put his health at serious risk. For 11 years, he periodically used anabolic-androgenic steroids (AAS), including a substance intended solely for veterinary use to increase muscle mass in cattle. This practice caused catastrophic changes in his body, leading to a near-fatal outcome.
The man's health deteriorated over several years. He suffered from heart failure, kidney damage, liver issues, and acute blood pressure fluctuations. During one hospitalization, when his heart was pumping only 21% of its blood capacity, the patient was placed on an ECMO (extracorporeal membrane oxygenation) machine to sustain his life. For years, doctors struggled to identify the cause, as the patient concealed his steroid use.
The Truth Revealed by Doctors
Finally, in 2026, when the patient was hospitalized again in critical condition, doctors managed to connect all his symptoms, including gynecomastia, insulin resistance, and high red blood cell counts. Dialogue with the patient revealed he had been using "trenbolone," a veterinary steroid. Tests showed his blood testosterone levels were so high that laboratory equipment could not even accurately measure them.
The diagnosis was cardiomyopathy caused by androgen excess. According to doctors, this is not an isolated case. In the US, it is estimated that 3 to 4 million people use steroids. Medical professionals emphasize that the number of such patients is rising, and clinicians must be prepared for complications such as heart muscle damage, atherosclerosis, and hypogonadism.
A Difficult Path to Recovery
The patient ceased steroid use, which led to a significant improvement in heart function. Four months later, his heart's pumping efficiency increased to 49%. However, restoring his hormonal balance proved much more difficult. Symptoms of hypogonadism, such as reduced libido and erectile dysfunction, require long-term treatment. Doctors warn that full rehabilitation could take up to three years.
This case serves as a vital lesson for those attempting to rapidly change their physique using illegal pharmacological agents. The medical community urges athletes and fitness enthusiasts to recognise the irreversible damage that synthetic hormones inflict on vital human organs.