Here is an interview with the lizardman taken from his website about his process of becoming and modifying his body (Sprauge,2013):

Why have you transformed yourself via various body modification processes?
My physical appearance is part of a transformation project I began as an undergraduate working in body based performance art.

Why a reptilian theme?
I felt I should choose something that would work well for a total body theme (fit all areas, age well) and, even more importantly, something I would like for the rest of my life. After considering several options (mazes, stories, spots, stripes) I settled on the reptilian theme because I liked the look and it made a good fit with other ideas I had for the future at the time; like my split tongue and teeth, which did come to pass.

What about the non-reptilian elements like the earlobes and 'freak' tattoo on your chest?
The nature of the project is not wholly restrictive to purely reptilian aspects. My body is still mine and I have chosen to incorporate other elements I find desirable. If you really need to nitpick then think of it as a lizard-man with stretched earlobes and tattoos on his chest and arms.

What body modifications have you had done?
I have undergone an estimated 650-700 hours of tattooing. I have had several piercings, of which I currently retain and wear jewelry only in my half-inch diameter septum.  Due to a severe reaction I stopped wearing jewelry in my one inch earlobes in February 2009 at which time they were unofficially the strongest pierced lobes in the world having successfully pulled cars on several occasions. As of 2012 I have begun working on building up my ears for lifting and pulling stunts once again.  I have had five Teflon horns subdermally implanted above each of my eyes to form horned ridges. Four of my teeth have been filed into sharp fangs. And my tongue has been bifurcated.

Are you finished? Will you ever be finished?
I am not finished but I do hope someday to complete my tattooing and other planned procedures. I won't say absolutely that I will be finished though; as new technology and ideas may arise that I can incorporate into my own work.

Does it hurt?
Yes. It all hurts and if someone says it doesn't then they likely have a problem with their nervous system. The very nature of what is done during these procedures (needles in skin et al) means they should hurt but pain is no reason not to do something. Lots of things hurt but they are worth it - childbirth for instance, or so I am told anyway.

What about when you are older? What if you regret it?
My work has been done by some of the best and the design has good potential for aging. Given the risks I take professionally I will be more than happy to live long enough to become a wrinkled and faded old Lizardman. Regret is always a possibility for everyone, you could say the same to someone joining the army or going to law school. I have done my best to consider and plan for the eventualities that could cause me to regret my decisions - further, in fact, than many people I know went in considering far larger decisions like having children. I do not think that I will regret this; if I did I would not have done it.

What do your family think?

My family has always been nothing but loving and supportive. I probably would not have managed to do this without them. While it may seem hard for people looking in to understand what I do, my family has seen me develop and grow over the course of my life and they can see it as part of an overall whole.