Ovarian cancer

I have been reading as much as I could about ovarian cancer. There are articles in magazines, books (e.g. "It's always something" by Gilda Radner), newspapers, and on the Net. Just Google "ovarian cancer personal story" and you can read hundreds of bewilderingly painful stories of the horror. The more I read about the ovarian cancer the more appalled, horrified I am of its devastation and the attempts at its treatment. Not only the disease attacks a very sensitive organ of a woman it is so unpredictable and deadly. There are not many consistent symptoms; its cause is almost unknown and there is no prevention. It is so terrifying a random blow and the surgeries and subsequent chemotherapy is almost equally chancy. 

What is the purpose of living a good, clean life and befallen by a random disease with a guarantee of barbaric poisonous attempt to cure? A healthy woman with vague symptoms could one day be an attractive person and on the next day an ovarian cancer patient with assured horrid, tortured treatment. This is the injustice, the unfairness and horror of cancers - ovarian cancer in particular - that I can't find words to describe my sorrow, anger and fear.