Originally Posted by BendtheBar
There is research that indicates that DOMS may not be muscle soreness at all, but rather connective tissue soreness.
Either way, it is not a good indicator of growth. I've been lifting for 28 years and certain muscle groups never get sore. Quads and shoulders for example. They are still big though, especially the quads.
Train for progress, not pain. If soreness happens, it happens. It means little though.
Good to know! I also can't get my shoulders sore for the life of me. Thought I was doing something wrong. Thanks again, Beast!