Throughout history men have dressed as women and women as men. Clothing is all well and good but what makes us male or female is a much deeper and more complex issue.

The concept of gender reassignment (sex change) is foreign to many people. It involves intense hormone therapy, extensive psychological evaluation and counselling and major surgery that a transsexual patient must undergo in order to complete their transition from one gender to the other. It is not a journey anyone undertakes lightly.

Health24 brings you in-depth articles on the topic and put you in touch with an expert who will answer your questions online.

Learn more about gender reassignment and gender identity and follow the story of Phil who is in the process of becoming a man.