Medically reviewed by Oluseun Olufade, MD Knee pain often results from injuries to muscles, tendons, or ligaments.Deep vein thrombosis is a severe condition that can cause pain behind your knee.Most ...

Nov. 13, 2025 – You won't find any support groups for dead butt syndrome, aka gluteal amnesia, sleepy glutes, flabby butt, longback, or, for King of the Hill fans, diminished gluteal syndrome. "They ...