Essay about cancer disease

Radiation therapy is one of the major ambulatory treatment modalities for cancer.

Essay about cancer disease

Cancer is Essay about cancer disease of the most important non-infectious or non-communicable diseases. Out of them two lakhs of people die. It is mainly due to late detection. Many people are not aware of the early symptoms of this disease.

The growth of multicellular animals occurs due to addition of new cells.

Essay about cancer disease

The old or existing cells divide by mitosis to form new cells. This division is controlled and regulated by some factors. Sometimes, due to unknown reasons, some cells divide in abnormally faster rate to form a lump.

This lump increases rapidly causing ulcers. It causes serious complications in the body. These abnormal cells first destroy the organ and then the whole body. These cells utilize the total food of the body.

So the affected person becomes weak, looses his weight and ultimately dies. The tumors, enclosed in connective tissue are called benign tumor and when the tumors grow, it is called as malignant.

Cancer can be divided into different types: The cancer which occurs in muscles, cartilages, bones, blood vessels, connective tissues are known as sarcoma. This type of cancer originates from skin or cells which lines the internal organs.

It is the cancer of lymph glands and lymph nodes. It occurs in blood forming organs, specially the bone marrow. It is found that no organ of body and no species is free from cancer. The real cause of cancer is not yet known. The following aspects can be attributed to the cause of cancer: Excessive smoking has been found to be associated with lung cancer, cancer in urinary bladder, mouth, throat, larynx etc.

Chewing of tobacco, betel nuts etc. A large number of dyes, chemicals, heavy metals can cause cancer.

Essay about cancer disease

Ionic radiations like X-ray, gamma ray etc. Alcohol is thought to be the cause of cancer in stomach, liver, gall bladder etc. Pollutants like chemicals, smoke, dust may be responsible for cancer. Though the exact cause of cancer is not known, the above described substances are mutagens which can cause mutation in genes.

The mutant genes have no control over normal functioning of the cell. So it may lead to cancer. Though cancer can develop at any part or organ of the body, it mostly develops in some organs like liver, alimentary canal, larynx, pharynx, tongue, lips, gall bladder, lungs, uterus, urinary bladder, lymph nodes, bones etc.

Short Essay on Cancer

Primary Symptoms of Cancer: Presence of any persistent lump or thickening of tissues in lip, tongue or breast. Any wound that does not heal. Unusual bleeding or discharge of blood.

Persistent indigestion, difficulty in swallowing. A regular change in bowel movements. Rapid change in rate of growth, colour and form of mole or wart. Change in the voice.Stomach Cancer Epidemiology Essay. Epidemiologic transition is the shift of diseases from infectious diseases to chronic diseases.

Factors that led to these transitions included the introduction of vaccines, increased sanitation, and overall improvement of . Genetics and lung diseases in one’s genetics can also become significant risk factors of lung cancer. For example, if a person’s mother, father, sibling, aunt, uncle, or grandparent has had lung cancer, the chances of this person developing lung cancer slightly increases.

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Higher incidences of cervical cancer have been noticed in women who smoke. According to researchers, 1 out 5 heavy smokers will die of lung cancer. The ratio for moderate smokers declines to 1 in 10 persons. Another alarming case is that among all the lung cancer patients only % persons are non-smokers.

Breast cancer is a serious disease that takes place in the cells of the breast. It is detected by many things; finding a lump, a change in how the breast looks.

It is important to know how breast cancer works and the many parts that contribute to the knowledge of the disease. Famous actress Angelina.

Short Essay on Cancer