2. Bad breath
When the tumors caused by oral cancers become very large in size and outgrow their blood supply, it will form an ulcer. Bacteria could then infect the site of the sore. These invasive bacteria will cause a foul odor that will linger even after you have brushed your teeth and gargled with mouthwash.
The inability to remove this smell is the easiest way to distinguish it from morning breath. Additionally, you might notice that the foul odor is accompanied by pain whenever you swallow. It’s worth noting that not every cause of foul odor in our mouth suggests oral cancer. Other causes could include tonsilitis.
That said, even if you do have tonsilitis, you’ll still need to receive treatment to ensure that this relatively minor issue doesn’t spiral into something more severe. If your tests do come up positive and you are diagnosed with oral cancer, don’t panic. Instead, just get the proper treatment and hope that you diagnosed it early enough to beat it.