Well trained, some dogs are capable of detecting illnesses such as cancers: this is what several studies conducted by different medical teams all around the world have confirmed. Everything started through sheer luck : a woman had noticed her dog couldn't stop sniffing the mole she had on her leg. An analyse revealed it was about a carcinoma. Scientists have looked into the situation and have ventured the hypothesis that dogs were able to detect cancers thanks to their sense of smell, which is much more developed than humans' one.
Prostate cancer is the first screening case made by dogs, but the experience has been expanded to other forms of cancers such as breast cancer or lung cancer. This kind of cancer screening has been really convincing with a success rate neighbouring 100%. Those results have encouraged cancer researchers to explore a lead concerning artificial noses which could permit to set up non-invasive cancer screenings.