Hence, the uncontrolled and abnormal growth of irregular body cells is known as cancer. More recent research on the issue has proposed a unified view of the origin of cancer cells. Accepting that the growth of the cells and the tissues by its reproduction is regulated from the inside of the DNA material encoded in the genetic instructions. The unified view of the development of cancer states that from different causal factors that may disrupt the correct interpretation of the information expressed in the genetic material – nutrition, obesity, toxins, radiation, virus, transcription errors, or environmental causes for example- complicates the correct functioning of the cell growth and replication process leading to the development of cells with an accelerated replication, an unregulated environmental proliferation and opportunistic cells capable of unlimited replication and surpass its limited area invading other cells and tissues. Even when with recent research and increasing evidence of the external factors that can help to the cancer development, it is a simple a result of a mistake of the gene expression …show more content…
Therefore, the presentation of cancer displays many different signs depending on the organ affected or the cellular line from where the malignant cell is developed. Hence, independently of the type of cell that creates the malignancy, the cancer patients demonstrate characteristic signs and symptoms. The identification of early signs and symptoms that could suggest cancer are promoted by the American Cancer Society (Copstead-Kirkhorn,2014) invites the public to attend medical evaluation if they recognize some of the signs promoted as Cancer Warning Signs. The Changes in bowel’s habits, a sore that does not heal, unusual bleeding or discharge, lump or thickening in a breast, indigestion or difficult to swallow, mole changes and nagging cough or hoarseness are signs to observe by the adult population. Similarly, the American Cancer Association recommends observe the next signs as warning of cancer in children: weight loss unexplained, headaches, vomiting in the morning, persistent swelling in the joints, abdominal or neck mass, whitish appearance in the eye pupil, recurrent fever without infection signs, frequent bleeding or bruising, paleness or tiredness. Furthermore, the Organization emits recommendations to follow that can help to increase the opportunities to detect