White coat wonders on Instagram: "“Flesh-eating STD” usually refers to donovanosis (granuloma inguinale) — a rare, sexually transmitted infection caused by the bacterium Klebsiella granulomatis. It leads to painless, ulcerative sores on the genitals and surrounding skin that can slowly destroy tissue if left untreated, giving it the “flesh-eating” nickname. The infection spreads through sexual contact and is more common in tropical and developing regions. Early diagnosis and antibiotic treatment