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Cancer Definition
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Cancer is a group of diseases that involve the uncontrollable growth or division of abnormal cells and has the potential to spread and invade other organs. It is the synonym of a malignant tumor. We cannot say a benign tumor as cancer because it remains confined to one place and does not spread.

Causes or risk factors of cancer

Some important risk factors are:

  • Certain infections
  • Tobacco
  • Alcohol
  • Obesity
  • Lack of physical activity
  • Poor diet
  • Environmental pollution
  • Inherited genetic mutation
  • Radiations
  • Age factors

Percentage of cancer and death due to different risk factors

5-10% cancer is occurring due to genetic inherited history. A person receive defected genes from their parents and become a victim of cancer.

Tobacco is responsible for for22% of deaths due to cancer. Tobacco is majorly present in cigarette smoke. It is carcinogenic and causes lung cancer in both smokers and passive smokers. Other 10% is causing due to poor diet, obesity, alcohol consumption and physical activity. Exposure to rays like ionizing radiations, certain infections, and environmental pollution are also causing different types of cancer. Infections may cause due to microorganisms like viruses and bacteria.




Following are some important symptoms of cancer:

  • Abnormal bleeding
  • Unexplained weight loss
  • A lump
  • Prolonged cough
  • Change in bowel movements

These symptoms are different in different types of cancer.

Types of cancer

Types Of Cancer


There are many types of cancer. Some important types are:

  • Colorectal cancer
  • Liver cancer
  • Breast cancer
  • Lung cancer
  • Prostate cancer
  • Pancreatic cancer
  • Stomach cancer
  • Bladder cancer
  • Thyroid gland cancer
  • Skin cancer
  • Brain cancer
  • Blood cancer
  • Testis cancer
  • Anus cancer
  • Vagina cancer
  • Penis cancer

These are some important types of cancer. Every type has its own risk factors and treatment. Some types are specific to women like breast cancer and some are common in men like lung cancer. Every type has its own causative agents. The major risk factor for many types is environmental pollution. Our environment is being polluted with many types of pollutants like ionizing rays and carcinogens.

Types of treatments

The choice of treatment depends upon the causative agent, the age of the patient, health status, weight and type of cancer.




Hormonal therapy

First, consult your doctor if you have the symptoms of cancer.  Many medical tests can confirm the presence of cancer. You should not be disappointed if your tests reports are positive for cancer. There is no need to worry about this because our technology is progressing in finding out the treatments of cancer.

Prevention of cancer

We should take measures to stop the spread of lethal disease. We should abandon its root causes. We should arrange seminars and awareness programs about cancer. Some protective measures include physical activity, medication, dietary measures, and vaccination. The biochemical logic of physical activity is still not understood. It reduces the rate of cancer by reducing body weight. It decreases the production of some hormones like estrogen and strengthens our immune system. Vaccines are also available for cancer prevention. Some medicines can reduce the risk of cancer in a certain individual with good health status. Similarly, some diets may increase or decrease the risk of cancer. We should avoid the diets that increase the risk of cancer and use such diets that are good for health. Some dangerous diets that we must avoid are animal fats, red or processed meat and refined carbohydrates. The diets that we should mostly use include whole grain, fruits, vegetables, and fish.

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