why does it need to be photoshopped while almost 75% of people who BB in my gym don't do leg day?

From my experience of dealing with three injuries, I would say that lay off from the weight is a way. That was what I done for my shoulder injury. Taking some glucosamine, fish oil and avoid putting stress on the injured place.

For my knee and wrist, I lift weight to cure them. By having a tougher muscle around the joint, it helps to hold the join together and make it much less painful and after quite some time, I'm pain free.

It seems that the two advice are the opposite but hell I can't explain them