According to Mail Online, A healthy, 30-year-old man in Stockholm wanted to increase both the girth and length of his genitals using a process where fat is transferred from his belly to his penis.
A description of the case in the Journal of Forensic Sciences explained that surgeons had finished the elongation portion of the surgery and were in the enlargement part, which involved injecting the patient with two fluid ounces of his own fat cells, when things went wrong. The fat leaked into his veins and traveled to his lungs, which resulted in a lung embolism, rupturing his blood vessels. The patient, who was found to have no prior heart conditions, ended up having a heart attack on the operating table. Despite attempts from doctors to perform CPR, the man passed away two hours later.
The conclusion of the study said, “This is the first described case where a seemingly simple and safe procedure of penis enlargement by autologous fat transfer caused sudden death in a healthy young man.” It also suggested that the surgery was riskier since it combined two procedures.