Operation Ouch!: Season 4, Episode 5

4 - 5: The Big Skin Mystery

The doctors test a new theory to see if they can find out why skin goes wrinkly in the bath, Dr Chris meets a patient taking part in groundbreaking heart research, and test the power of your eyes in today's mind-bending trick. Meanwhile, there are more medical mysteries in Ouch & About, and over in accident and emergency one patient has a very sore head and another has dislocated her jaw.