In this edition, a group of men dedicated to promoting early detection of testicular cancer join the doctors in the studio for a live testicle check, and Dr Christian's in the pathology labs at Birmingham's Queen Elizabeth hospital to show viewers how testicular cancer is analysed. Meanwhile, scientist Dr James Logan from The London School of Hygiene and Tropical Medicine shows viewers how a bed bug epidemic spreads by taking just two bed bugs and testing how they multiply in the Embarrassing Bodies House of Infestation. Plus Skype consultations with viewers at home.