It's hard to be modest in the hospital. Flimsy gowns, long trailing tubes, and doctor's examinations can mean you're showing more skin than you're used to. Calling ahead before you visit a friend or family member gives them time to prepare for your visit.
Reader's Experience: "After breast surgery one of my high school teachers showed up unexpectedly. I was completely mortified! Since then, I make sure I always call before I visit anyone in the hospital." (Marilyn)