I've been lifting for a good number of years and have been benching, squatting, deadlifting, military press, barbell curls, etc. fairly heavy. Never any major problems. Occassional shoulder or elbow strain that lasts maybe a week at most. A lot of guys aren't cut out for this stuff and should be advised to try some different hobbies until they discover something that works for them. For some it may be a musical instrument, for others it could be a coin collection. You see these guys in the gym year after, spinning their wheels, always looking the same. Then one day they wrench a shoulder or a knee and it's all over. The doctor kindly advises them to move on from lifting. Meanwhile the doctor is thinking does this guy even lift?
With me, I took to lifting like a fish to water and I've always been huge and strong as an ox. I make progress every year in both size and strength. I just love it.