Originally posted by Knowsbleed33
Nightcrawler cause him pain with a candlabra, Prof. Hulk seemingly caused him pain with a simple gut-shot, D'Spayre caused him pain when he powered molten steel on him (Juggernaut was depowered at that point though), Shatterstar carved out his eye, Juggernaut yelled in pain, Spider-Woman and Storm dumping so much power into Juggernaut they both nearly died caused him pain.
The first instance is PIS. Cain has stood in lava and had his armor heated up till it was red hot and didn't notice either. I don't think Prof Hulk punching him caused him pain either, it was just the air being forced out of his lungs. The others were either magical attacks or they attacked his nerves(which does not make much sense). Juggernaut has yet to be damaged while he has been at full power. I know you are aware of those instances, but others may not be.