Cancer is the uncontrolled growth of abnormal cells of body. The abnormal cells are termed cancer cells, malignant cells, or tumor cells. It is also called neoplasm.
Types of Cancer:
There are many of cancers, as follows:
- Carcinoma: Cancer that begins in the skin or in tissues that line or cover internal organs
- Sarcoma: Cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue
- Leukemia: Cancer that starts in blood-forming tissue such as the bone marrow and causes large numbers of abnormal blood cells to be produced and enter the blood
- Lymphoma and myeloma: Cancers that begin in the cells of the immune system
Causes of Cancer:
- Exposure of body to uv-radiation or X-rays for long.
- Carcinogens like mustard gas, benzopyerene etc
- Chewing tobacco and smoking causes lung and oral cancer.
- Viruses can also cause cancer.
Symptoms of Cancer:
They are as follows:
- May cause Fever (no clear infectious source, recurrent or constant)
- There may be Fatigue (not relived by rest)
- Person claims Weight loss (without trying to lose weight)
- Pain (usually persistent)
- Skin changes (coloration, sores that do not heal, white spots in mouth or on tongue, wart changes)
- Change in bowel or bladder functions
- Unusual bleeding (mouth, vaginal, and bladder) or discharge
- There can be Persistent cough or change in voice
- Lumps or tissue masses are seen
Diagnosis of Cancer:
- Blood test for blood cancer
- Bone marrow biopsy
- CT scans and MRI
- Analysis of molecular changes of cancerous cells
Treatment of Cancer:
- Medicines like ABC etc
- Interferon medicines
Preventions of Cancer:
- Avoiding smoking tobacco.
- Avoiding excess sunlight (by decreasing exposure or applying sunscreen) and many of the chemicals and toxins is an excellent way to avoid cancers.
- Avoiding contact with certain viruses and other pathogens also is likely to prevent some cancers.
- People who have to work close to cancer-causing agents (chemical workers,
- X-ray technicians, ionizing radiation researchers) should follow all safety precautions and minimize any exposure to such compounds.
- There are two vaccines currently approved by the U.S. Food and Drug Administration (FDA) to prevent specific types of cancer. Vaccines against the hepatitis B virus, which is considered a cause of some liver cancers, and vaccines against human papillomavirus types 16 and 18, which, according to the NCI, are responsible for about 70% of cervical cancer.
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