Smoking is now associated with an increasing number of cancers beyond lung cancer, such as bladder, head and neck, breast, cervical, and skin cancer.
Notably:
Smoking more than triples the risk of developing squamous cell carcinoma, one of the most common forms of skin cancer, researchers from the Netherlands have shown in 2000.
(The researchers concluded that current smokers were 3.3 times more likely to develop the cancer, and that the risk dropped to 1.9 in former smokers. They also demonstrated a clear relationship between the number of cigarettes smoked and cancer risk. Those who smoked 1-10 cigarettes daily had a risk of 2.4; smoking 11-20 cigarettes a day increased the risk to 3.0, and those who smoked 21 or more cigarettes a day had a risk of 4.1. Pipe smokers were also at increased risk, but cigar smokers were not.)
(I wonder if the direct skin contact with smoke plays a role in this.)
This is a big issue because:
Non-melanoma skin cancers are THE most common form of cancer worldwide. (though they can be easily treated, while melanoma, the most serious form of skin cancer, can be fatal if not detected and treated early enough)
(Skin cancer is also the most common malignancy in the U.S. Half of all new cancers diagnosed in the U.S. are skin cancers.)
(Australia has the highest incidence of skin cancer of any country in the world. Two out of three Australians will be treated for some form of skin cancer during their lifetime.)
And active smoking appears to play a larger role in the development of breast cancer than previously thought, according to a 2004 study.
(The incidence of breast cancer among current smokers was approximately 30% greater than that among women who had never smoked, in women without a family history of breast cancer but not among women with a family history of the disease.)
(There was no evidence of an association between passive smoking exposure and breast cancer risk.)
This is a big issue because:
Breast cancer is THE main cause of death from cancer in women globally.