The risks are greater if you the glutathione S-transferase M1, or GSTM1 genes, so it appears we need to find out if we have that gene as females to see how risky talcum powder would be. 
I guess sooner or late we are all going to want to know more about our genes so we can figure out not only what drugs create risk, but other products as well.
One expert said it had chemical similarities to asbestos, so I guess we have been powdering up with the likes of asbestos for years. BD
Scientists have issued a warning to women about using talcum powder - they say it increases their risk of developing ovarian cancer.
According to researchers from Harvard Medical School, particles in the powder when applied to the genitals can travel to the ovaries and trigger a process of inflammation that allows cancer cells to flourish.
Other research has previously raised concerns over the use of talcum powder but this new study suggests women who use it are 40% more likely to develop ovarian cancer - a much greater risk than first thought.
According to Dr. Maggie Gates, who led the study, until more research is done women should avoid using talcum powder in the genital area.
The study also revealed that the risks were greater still for those with a certain genetic profile - women carrying a gene called glutathione S-transferase M1, or GSTM1, but lacking a gene called glutathione S-transferase T1 ( GSTT1), were nearly three times as likely to develop tumors.
Around one in ten Caucasian women are thought to have this genetic profile, putting them at sharply increased
Women warned about talcum powder ovarian cancer risk
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