Cancer is defined as uncontrolled growth of abnormal cells in the body. These abnormal cells are called malignant cells. Cancer grows out from the normal cells which multiply when the body needs them and dies when the body does not need them. It appears that cancer cells grow when the cells in the body grow out of control or when the cells forget to die. Cancer has been known to develop after affecting any kind of organ or tissue for instance; the breasts, skin, lungs, mouth, prostrate, colon, bones among others. Cancer can be caused by various things and a few of them are; obesity, radiation, genetic problems/ inheritance, drinking excess alcohol, radiation, viruses, excessive exposure to the sunlight, benzene and other chemicals.
Even though the above named items cause cancer, the main cause of many cancers still remain unknown. Prostrate, lung and colon cancers are the major ones which affect men in the United States while the breast, colon, and lung cancers are common in women. It has been noted that different cancers are there globally but their rates vary as some are higher in certain countries and lower in certain countries; may be food plays a role. Cancer symptoms depend on the affected area and the type of the cancer. Most cancers have the following symptoms: loss of appetite, fever, fatigue, chills, night sweats, weight loss, and malaise. Cancer can be tested in various ways i.e. biopsy of the tumor, chest x-ray, CT scan, MRI scan, complete blood count, bone marrow biopsy for leukemia, and blood tests. Cancer can be treated depending on the severity of the infection and the treatments include; surgery, radiation, chemotherapy, sometimes both chemotherapy, and radiation. If the tumor has spread to the local lymph nodes sometimes these (lymph nodes) can be removed.From the Web