[alecco]

Swimming has its own set of injuries. Shoulders in particular. Also your skin gets bad with all the chlorine unless you shower thoroughly +before+ and after, and apply moisturizer. None of the swimmers I know only shower afterwards, including women.

[falcolas]

Second this on the repetitive stress injuries. Strong breaststroke swimmers can have knee issues due to the lateral force on a joint that doesn't move laterally. For shoulders - rotary cuff injuries are incredibly common, especially since the muscles developed by swimming are far larger and stronger than the muscles which hold the joints in place.

20+ years after finishing my swimming career, I still have to deal with both of those repetitive injuries.