What causes Cancer?

What causes Cancer?

Do you suffer from unexplained weight loss? Do you have a mole or wart that is changing in size or shape? You might be showing signs of cancer! If left untreated, cancer can spread to the different parts of the body. This can lead to death. What are the other symptoms of cancer? Read on…

Cancer is a major concern. It can claim lives if it’s not treated at the right time. There are over 100 types of cancer. Knowing the causes of cancer may help in preventing cancer.

What is cancer?

Generally old cells are replaced by new cells. Sometimes problems occur in this process. New cells grow when they are not required and the old cells do not die. This mass of abnormal cells is known as tumor. The tumor can be benign or malignant in form. Benign tumors are not cancerous whereas malignant tumors are cancerous in form.

Malignant tumors are more dangerous because they can enter the blood stream destroying a healthy tissue in the process. When cancer spreads to the other parts of the body from its primary site, it’s called metastasis.

What are the causes of cancer?

Cancer is caused due to various reasons. The causes of cancer are as follows:

  1. Variations in the genes: Oncogene is a type of gene that tells the cells when to divide and tumor suppressor genes tell the cells when not to divide. Cancer obstructs the functions of the oncogenes and tumor suppressor genes.
  2. Family history: When there is a fault in the genes, it can lead to cancer.
  3. Carcinogens: Carcinogens are cancer causing agents. The cancer causing agents are tobacco, asbestos, arsenic, the sun, compounds in car exhaust fumes etc. When bodies are exposed to these materials, free radicals are formed in the body. These free radicals damage the cells, this leads to cancer.
  4. Other factors: As people age the DNA undergoes various changes, this can cause cancer. Viruses like human papillomavirus, hepatitis B and C and Epstein-Barr virus can cause cancers. Diseases that weaken the immune system can cause cancers.

What are the symptoms of cancer?

The symptoms of cancer are as follows:

  • Extreme tiredness
  • Lump or thickening of the skin in any body part
  • Unexpected weight loss
  • Changes in shape, size of moles, warts etc
  • Chronic cough
  • Changes in bowel or bladder movements
  • Difficulty in swallowing
  • Discomfort after having meals
  • Muscle or joint pain
  • Unexplained fevers
  • Night sweats

Cancer can be life threatening. If you suffer from any of the above symptoms, consult an oncologist online at eVaidya now!


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