The evolution of surgery over the last 100 years is horrifying and astounding

When you think about it, surgery is downright bizarre - humans cut into one another all the time to get rid of deadly diseases and excess body fat.

But the fact we don't marvel about this on a daily basis shows how advanced surgery has become. Over the last 100 years or so, surgery has become a safe and reliable tool, not to mention a necessary component of public health.

Here's a taste of what that journey looked like.