Ovarian cancer refers to a cancerous that can arise from any part of the ovary. The ovaries are parts of the reproductive system of a woman. They are located in the pelvis. Cancer starts in the cells which are the building blocks for the tissues (Garcia and Ahmed, para 5). Despite the fact that ovarian cancer starts in the ovaries, the cells multiply very fast and can invade, shed or spread to other body organs. This type of cancer is mostly common with women over the age of 50, but this does not mean that it cannot affect younger women.

Ovarian cancer is one of the most common kinds of cancer affecting women in the US. Ovarian cancer is not so easy to detect early, since in the early stages the disease has minimal, non-specific or no symptoms. This is unfortunate because the sooner it is detected and treated the better the chances of recovering. Generally, diagnosis of ovarian cancer is very poor (Henderson, Ponder, and Ross, P 54). Causes Conventionally, ovarian cancer has been believed to emanate from the cells in the serosa of the ovaries. Nevertheless, some researchers have suggested different cells of origin.

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The exact cause of the cancer is not known. However, many risky and contributing factors have been suggested. The factors can be grouped into reproductive and genetic or hereditary factors. Another risky factor besides these two is alcohol (Jasen, P. 490). Reproductive factors Parity is one of the important risk factors. It has been suggested that women who have been expectant have 50 percent lower risk of developing the cancer. Some authors have argued that multiple pregnancies usually offer more protective effect.

Oral birth control means also lower the risk of the cancer. Reproductive factors are in line with the argument that the cancer is associated with ovulation. Therefore the conditions that control ovulation can act as protective factors. The cancer can come as a result of irregular repair process on the facade of the ovaries that is ruptured and then repaired during the ovulation cycle. This means that the probability of ovarian cancer may be associated with the number of ovulation cycles (Werner-Lin, P. 335).