Cigarette smoking causes

Signs and symptoms of cigarette smoking are frequently obvious even to a casual observer. Besides the confirmatory evidence (a person actually smoking a cigarette in public view), -stained fingers and, the characteristic smell of smoke impregnated clothing and household items, the chronic ", " the gravelly voice, and often the visible pack of cigarettes and lighter in a person's pocket or purse are signs and symptoms that a person smokes. However, new (teenage) smokers or "infrequent" smokers may exhibit few or none of these signs and symptoms. In addition, many teens will try to "cover up" any evidence of cigarette use for any number of reasons (for example, the legality regarding their age and the purchase of cigarettes or their parents forbid smoking).

Signs and symptoms of tobacco related diseases often depend on the specific illnesses they cause. (There are many other symptoms of tobacco-related diseases, and those listed here are simply examples.)

• Shortness of breath may be a sign of emphysema or .
• may signal caused by insufficient blood flow to the heart or a heart attack.
• The presence of any of the following common symptoms associated with tobacco use should prompt a visit to the doctor or hospital's emergency department: