Join Date: Sep 2007
Location: Ontario Canada
Dogs Name: Lexxington
Titles: Dragon Slaying Guru
Dogs Age: 2 yrs
Gallery Pics: 7 Visit Lexxsmom's Gallery
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i think that the prevalence of cancer in dogs and more importantly in people hasn't really changed over the last few decades, but our ability to treat other problems has.
people often speak to me about how we must not be researching fast enough because the prevalence of cancer is getting so much higher every year. The truth is, cancer has always been around. Its always been common, its just that 50 years ago when the life expectancy of a human was only 75 instead of people commonly living until 90-100, we just didn't see cancer as much because they were killed by something else first. Also, medical technology is improving in leaps and bounds... what we may not have been able to identify 20, even 10, 5 years ago we might now be able to determine is cancer. giving people the idea that its a lot MORE common now, which is simply not the case.
as for dogs, their lifespan is accelerated compared to ours, so cancers appear fairly freqeuntly in older dogs. lymphomas i know are common. This is also due to improvements in vet care, dogs and cats are surviving other medical crises that they never would have before and are living longer, increasing cancer risk in later life due to age
cael's point about exposure is important as well, chemical agents, pollution, bad quality food etc could of course contribute to cancer development as well... however... depending on who you talk to, ANYTHING can cause cancer from CFCs to drinking water, apples to sunshine.