It may seem something we take for granted, but for many in the world, proper rehabilitation is a luxury that remains unattainable.
More than two billion people do not have access to safe, clean sanitation, causing a risk of many harmful diseases.
At the conference, which was named Reinvent Toilet this week, Bill Gates came on stage with a glass of human excrement to illustrate his weight that poor sanitation is endangering hundreds of millions of people.
The conference presented 20 models of technology companies for new types of sanitary facilities that could improve sanitation in areas without access to water.
Listen to Michelle Dickinson Speech with KERRE MCIVOR above