Human body is made up of millions of cells. Cell cycle is a symbol
of life. Killing of old cells and replacing it with new cells is
continuous, regularised and controlled process. When this process
becomes uncontrolled or irregular there is a formaton of
TUMOUR.
TUMOUR means Uncontrolled, unusual, purposeless proliferation of
cells.
Tumours are of two types
1.Harmless- Benign
2.Harmful -Malignant
Benign tumours do not spread to distant parts or organs while
malignant tumours have potential to spread to distant parts and
other organs of body. Cells from malignant tumours travels through
blood vessels and lymphatics and reaches to the distant sites
where they forms colonies. These colonies are called as metastasis
and these malignant tumours are called cancer.
People have very big stigma and fear about cancer. Many people think cancer is incurable but it’s not true. There are lot of new developments in cancer treatment in recent past which made majority of cancer curable.Early detection and proper treatment by cancer specialists is key of success and increases chances of complete cure.
[vc_table vc_table_theme=”classic_pink”]Sr.%20No.,Stage,Percentage%20Of%20Curability|1,Stage%20I,90%20-%20100%25|2.,Stage%20II,70%20-%2080%25|3.,Stage%20III,40%20-%2060%25|4.,Stage%20IV,0%20-%205%25%20(Very%20Less)[/vc_table]
There are three types of treatments for cancer.
Killing old cells and replacing it with same number of normal new
cells is ongoing process. While producing new cells few abnormal
cells are also produced. Body has a very efficient quality control
department. As new cells are produced quality control department
checks each and every cell and allows only normal cells to enter
in the new cycle, abnormal cells are killed and not allowed to
enter in the new cycle.
Now any defect in above process produces cancer. If quality
control becomes weak due to genetic defects or old age or
decreased immunity chances of defective cells entering to new
cycle increases. Once defective cell enters new cycle it keeps on
producing new defective cells and tumour or cancer is formed. E.g.
Familial cancers, old age cancers, cancers with AIDS.
If production of cells is more due to continuous infection (H.
Papilloma virus in carcinoma cervix) or due to continuous injuries
and healing (betel nut injuries in oral cancer) or action of
carcinogens on developing new cells (tobacco in oral cancer)
chances of abnormal cells entering to new cell cycle and
developing cancer increases.
TOBACCO – CHEWING OR SMOKING
DIET AND EXERCISES
VIRAL INFECTIONS
HEREDITY
RADIATION
Cancer screening aims to detect cancer before symptoms appear.
This may involve blood tests, urine tests, other tests, or medical
imaging. The benefits of screening in terms of cancer prevention,
early detection and subsequent treatment must be weighed against
any harms.
Screening tests must be effective, safe, well-tolerated with
acceptably low rates of false positive and false negative results.
Screening for cancer can lead to cancer prevention and earlier diagnosis. Early diagnosis may lead to higher rates of successful treatment and extended life. However, it may also falsely appear to increase the time to death through lead time bias or length time bias.
Cancer in initial stages doesn’t show any signs and symptoms. After certain stage it starts producing its signs and symptoms. Following are some symptoms of cancer. If you get any of these symptoms consult your doctor as early as possible before it grows to incurable stage. Treatment from cancer specialists increases the chances of cure. Cancer is curable if detected early and treated properly.
After the treatment of cancer it is very important to follow your doctor regularly.