@178anatomy: PAIN DEEP UNDER YOUR GLUTE WHEN YOU SIT MAY NOT ALWAYS BE SCIATICA. The proximal hamstring tendons attach directly to the sit bone, while the sciatic nerve runs nearby. Because these structures sit so close together, symptoms can sometimes feel surprisingly similar. Sitting and forward hip flexion may increase mechanical load around a sensitive proximal hamstring attachment, while nerve irritation may produce burning, tingling, numbness, or symptoms travelling farther down the leg. Want another video showing the differences more clearly? Comment SITBONE. #SitBonePain #HamstringTendon #Sciatica #PhysicalTherapy #Biomechanics