Positive Romberg's sign.
Caused by tertiary syphilis, a condition known as tabes dorsalis.
The underlying problem is destruction of the dorsal column-medial leminiscus pathway(DCML), a group of ascending tracts concerned with conscious proprioception, joint position and vibration. (Fasciculus cuneatus for the upperlimbs and fasciculus gracilis for the lowerlimbs)
What's the sign?
Which STD can cause this??