The doctors unveil their top tips for keeping your penis tip top, from sexual health to bringing penis envy down to size. They also catch up with three men with penis problems.
Dr Christian tells the incredible story of Eric, who lost half his face to cancer
Series 7 Episode 1 - The Man with Half a Face
The doctors unveil their top tips for keeping your penis tip top
Series 7 Episode 2 - Penis Special
Can Britain's most extreme weight-loss treatment save 36-stone Patience's life?
Series 7 Episode 3 - The 36-Stone Woman