A painful condition - sometimes lasting many days - that often appears halfway through the attempted assembly of flatpack furniture. It can be avoided with the use of an electric screwdriver.
When I made my son's new bed - by the time I'd got 15 screws in, I had flatpack palm - it wrecked !
the red mark you get on the palm of your hand following the assembly of flatpack furniture, due to the motion required to turn the screwdriver repeatedly.
Dave is taking it easy, he got a bad case of Ikea Stigmata today after assembling a futon.