Cancers are often classified depending on the location of the primary tumor (organ or tissue). In this video, we described the main types of cancer: Respiratory system (Cancer of the trachea, lung or bronchi, Cancer of the pleura, Cancer of the mouth, larynx or pharynx, Cancer of the sinus or nasal cavity); Digestive system (stomach cancer, biliary tract cancer, liver cancer, pancreas cancer, esophageal cancer, small intestine cancer, rectal or colon cancer); Reproductive system (testicular canc