What is Cancer? Cancer Types, Symptoms, Causes, Tests, and Treatments?
Cancer – Cancer is when abnormal cells divide in an uncontrolled way. Cancer is group of diseases involving abnormal cell Growth with the potential to invade or spread to other parts of the body. Cancer Starts when gene changes make one cell or a few cells begin to grow and multiply too much. This may cause a growth called a tumour from which Cancer starts. Cancer sometimes spread to other parts of body called a Secondary Tumour or a metastasis. There are more than 100 types of Cancer – cancer, skin cancer, lung cancer, colon cancer, prostate cancer, and lymphoma
According to Type of Cell the main types of Cancer is
- Leukaemias – cancer of blood cells
- Lymphomas and myeloma
- Brain and spinal cord cancers
- Carcinomas – Cancer that started in the Skin or in tissues that line or cover internal organs. There are different subtypes, including adenocarcinoma, basal.
- Satcoma – Cancer that begins in the connective or supportive tissue such as bone cartilage, Fat, Muscle or blood vessels.
- Leukaemias – cancer of blood cells cancer that starts in blood forming tissue such as the bone marrow and causes produced in abnormal Blood Cell.
- Lymphoma and myeloma – Cancers that begin in the cells of the immune System.
- Brain and spinal cord cancers – these are known as central necrve system cancers.
Cancer Symptoms –
When Cancer begins it produces no symptoms. Signs and Symptoms appear as the mass grow. People may become anxious or depressed post-diagnosis. The risk of suicide in people with cancer is approximately double
Local Symptoms may occur to the mess of the tumor or its ulceration. For Example mass effects from lung cancer can block the bronchus resulting in cough or pneumonia; esophageal cancer can cause narrowing of the esophagus.
General symptoms occur due to effects that are not related to direct or metastatic spread. These may include: unintentional weight loss, fever, excessive fatigue and changes to the skin