Dr. Oz is joined by Tom Bergeron to host a laugh-out-loud hour of America's Funniest Health Videos! From bodily functions to medical mishaps, these are the funniest health videos of all time. Plus, big questions from Dr. Oz's littlest fans.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!