Cigarette smoking is the number one risk factor for lung cancer. Does it also induce other cancer types?

Answer: Smoking causes the majority of lung cancer cases, both in smokers and secondhand smokers. Several carcinogens –substances that promote cancer formation have been found in cigarettes such as acetaldehyde, aromatic amines, arsenic, benzene and formaldehyde. Apart from lung cancer, smoking can potentially cause other cancers including breast cancer and bladder cancer.