Most (80% to 100%) amputees experience a<unk> , with some of them having non-painful sensations. The amputee may feel very strongly that the<unk>  is still part of the body. People will sometimes feel as if they are gesturing, feel itches, twitch, or even try to pick things up. The missing limb often feels shorter and may feel as if it is in a distorted and painful position. Occasionally, the pain can be made worse by stress, anxiety and weather changes. Exposure to extreme weather conditions, especially below freezing temperatures, can cause increased sensitivity to the sensation.<unk>  pain is usually intermittent, but can be continuous in some cases. The frequency and intensity of attacks usually declines with time. Repressed memories in<unk> s could potentially explain the reason for existing sensations after amputation. Specifically, there have been several reports from patients of painful clenching spasms in the<unk>  hand with the feeling of their nails digging into their palms. The motor output is amplified due to the missing limb; therefore, the patient may experience the overflow of information as pain. The patient contains repressed memories from previous motor commands of clenching the hand and sensory information from digging their nails into their palm. These memories remain due to previous neural connections in the brain.
Phantom limb
Supernumerary phantom limb
Hand of benediction
Crutch paralysis
Kindling 
Radial neuropathy
Radial nerve dysfunction
Footwell intrusion