Cancer also termed as malignancy, is an uncontrolled growth of abnormal cells anywhere in the body. There are more than 200 different types of cancer, including lung cancer, colon cancer, prostate cancer, and lymphoma, just to name a few. All these cancer varieties result in cell growth in an abnormal proportion in the respective parts of the body, and the condition may eventually spread into other tissues through blood and lymph vessels.
Cancer refers to cells that grow enormously and attack other tissues. Popularly known as malignant or tumor cells, these abnormal cells infiltrate normal body tissues.
Due to the uncontrolled growth and division of the abnormal cells, a mass forms. Quite often, these cancer cells can break away from this mass of cells and lodge in the other parts of the body by traversing through the blood and lymph systems. This may cause an uncontrolled growth cycle to begin away from the site of origin, spreading throughout the body and spreading uncontrollably leading eventually to individual's death. This process, wherein the abnormality develops leading to a malignant growth (secondary) at a distance from a primary site of cancer, is called as metastasis.
Treatment for Cancer
Treatment options are advised to patients, on the basis of the type and stage of cancer. in some cases, diagnosis and treatment occur on a parallel basis. On the other hand, there are many cases, wherein, the patients are put under a unique sequenced treatment or protocol. A majority of these involves, surgery, immunotherapy, targeted therapy, chemotherapy, radiation therapy, or combination treatments.
Apart from these, palliative therapy, such as pain medications and anti-nausea medications, are utilized by doctors with the intent to treat the cancer and improve the quality of life of the terminally ill cancer patient.
Symtoms of Cancer
Vary according to the type of cancer; although general signs and symptoms include excessive tiredness, sudden weight loss, change in the skin color, alteration in bowel or bladder function, chronic cough, or unusual bleeding.