I had a number of minor gripes with this book, the biggest one being what I perceived as underestimating the reader - there were a handful of illustrations that I personally found unnecessary. For example, the caricature of the boy with his father at a urinal, suggesting his dad "might just have beningn prostate hyperplasia". Sure, it was humour, but I was left wanting an illustration of what BPH actually looks like and my curiosity was not satisfied by this book. To me this felt as underestimating my ability to understand medical illustrations. Sure, they can be really complex sometimes, but man, do they provide worlds more information than comics and caricatures.
I was torn between 3 and 4 stars, and this is the first time I feel inclined to actually go for half stars. So, 3.5 stars, but rounded up because the usefulness of this book can't be denied.