[Tobacco-related diseases].

The tobacco smoke intake by the smoker or by the non-smoker is a toxic product and a risk factor for diseases as acne in teenagers, respiratory and non respiratory infection, or histiocytosis X. The four main diseases are: chronic obstructive pulmonary disease, which is more 80% related to tobacco; cancer (lung carcinoma, pharyngeal, laryngeal and oesophageal carcinoma, kidney, bladder carcinoma); cardiovascular diseases (myocardial infarction, cerebral stoke and sudden cardiac death); adverse consequences of smoking related to pregnancy.