Mouth and throat
Smoking causes unattractive problems such as bad breath and stained teeth, and can also cause gum disease and damage your sense of taste.
The most serious damage smoking causes in your mouth and throat is an increased risk of cancer in your lips, tongue, throat, voice box and gullet (oesophagus). More than 93% of oropharangeal cancers (cancer in part of the throat) are caused by smoking.
The good news is that when you stop using tobacco, even after many years of use, you can greatly reduce your risk of developing head and neck cancer. Once you've been smokefree for 20 years, your risk of head and neck cancer is reduced to that of a non-smoker.