Verified By Dr S V S S Prasad January 14, 2024
2424There are countless cells in our body. However, sometimes, cells start growing with an uncontrolled growth rate. This uncontrolled growth of cells is medically termed cancer or tumor. It damages surrounding tissues and can spread to other parts of the body through the blood or lymph glands. There are more than 100 types of cancers. The most common of them are breast cancer, lung cancer, and prostate cancer, among others.
When cancer cells start to grow abnormally, they negatively impact the surrounding organs and nerves. That is when the cancer symptoms start manifesting. If cancer originates in a delicate organ like the brain, even a small tumor produces a lot of pain and many other symptoms. Some specific types of cancer do not show any symptoms until the cell growth increases in size, such as cancer of the pancreas.
The mutation of cell DNA causes cancer. The DNA inside a cell comprises many genes. Each gene instructs the cell function and growth. A mutation in the DNA stops the cell from performing its native functions. This change in cell functions ultimately causes cancer.
Gene mutation arises from the following factors:
Cancer symptoms vary with the organ or body part that is primarily affected. Some common cancer symptoms are mentioned below.
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If you experience any of the above cancer symptoms that are persistent and suspect you may be suffering from the disease, see a doctor immediately. Early detection and prompt treatment of cancer increase the chances of eliminating it and survival.
Some of the risk factors of cancer are:
● Your family history. The chances of getting cancer depend to a considerable extent on family history. Gene mutations can transfer from one generation to another. But, do bear in mind that an inherited gene mutation is not the only and primary risk factor for cancer.
● Your age. Age is also a risk factor for cancer. The disease is more common in adults, though it can occur at any age. Individuals over 65 years of age constitute a major risk group for cancer.
● Your environment. Continued exposure to carcinogens increases the risk of cancer. A carcinogen is any substance or other element that promotes the development of cancer. Benzene, asbestos, beryllium, and vinyl chloride are some carcinogenic chemicals. Prolonged exposure to such chemicals can cause cancer. Smoking can also cause cancer; even those who live around smokers could be at risk.
● Your habits. An individual’s lifestyle can increase the risks of cancer. Excessive smoking, alcohol consumption, and using harmful drugs can cause cancer. Having unsafe sex also increases the risk of cancer. Among other lifestyle factors, continuous exposure to heat and strokes (sunburns) also aggravates the risk.
● Chronic health conditions. A few other diseases also increase the risk of cancer. Ulcerative colitis is one of them.
Complications from cancer occur when the disease is left untreated and sometimes even after treatment. Some common complications of cancer are:
Headaches, dizziness, memory loss, reduced vision and other vision-related problems may occur with paraneoplastic syndrome.
Many tests are performed to detect and diagnose cancer. The common ones are:
Doctors determine treatment methods for cancer based on its location, stage, and type. Some well-known methods to treat cancer are:
Chemotherapy. This therapy uses drugs to stop the uncontrolled growth of cancer cells. In modern chemotherapy, the drug is injected intravenously or given orally.
Surgery. Doctors remove the tumour or tissues containing cancer with surgery. If cancer has not spread through the body, surgery can be the best treatment option.
Radiation treatment. In this type of treatment, radiation is used to destroy the cancer-affected cells and tissues. It is painless, but some swelling along with pain may occur in the affected area after treatment.
Bone marrow transplant. It is also called stem-cell transplant. During treatment, the defective bone marrow is replaced with healthier bone marrow.
Immunotherapy. This therapy helps our immune system to fight cancerous cells. It is also known as biological therapy.
Photodynamic therapy. In this therapy, doctors first inject a specific drug into the blood and then destroy the cancerous cells through light activation.
It is currently impossible to eliminate all chances of getting cancer. But precautions can and must be taken to reduce the risk of cancer, such as:
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If you detect any signs related to cancer, get yourself checked by a doctor immediately.
Yes. If you have had cancer before, then the disease may relapse. After the completion of cancer treatment, seek your doctor’s guidance on ways to stay in remission and prevent a recurrence.
MBBS, MD (Pediatrics), DM (Medical Oncology), Sr. Consultant Pediatric Hematologist &Medical Oncologist, Apollo Hospitals, Hyderabad
October 25, 2024