Cancer,causes of cancer symptoms of cancer,types of cancer ,prevention

 overview cancer







Cancer is a group of diseases characterized by uncontrolled, abnormal cell growth and spread throughout the body. It is a complex and multifaceted disease that affects millions of people worldwide. Despite advances in research and treatment, cancer remains one of the leading causes of death worldwide.


type of cancer


There are more than 100 types of cancer, each classified according to the type of cell that is first affected. The most common cancer types are:



carcinoma:

This type of cancer begins in the skin or tissue that lines or covers internal organs. sarcoma:

This type of cancer begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.


leukemia:

This type of cancer begins in blood-forming tissues, such as the bone marrow, and makes abnormal blood cells that circulate in the blood.


Lymphoma:

This type of cancer starts in cells of the immune system and can affect the lymph nodes, spleen, and other parts of the body.


cause of cancer


Cancer is a complex disease with multiple causes. Factors that increase the risk of cancer include:



Genetics:

Certain genetic mutations can increase your risk of developing certain types of cancer. Lifestyle factors:

Smoking, excessive alcohol consumption, poor diet, and lack of exercise can increase the risk of cancer.


Environmental factors:

Exposure to certain chemicals and pollutants can increase your risk of cancer.


Viruses and infections:

Certain viruses and infections, such as human papillomavirus (HPV), hepatitis B and C, and human immunodeficiency virus (HIV), can increase the risk of cancer.


cancer symptoms


Symptoms of cancer vary greatly depending on the type and stage of the disease. Some common symptoms are:



Malaise

unexplained weight loss

pain

Skin changes such as yellowing or darkening of the skin

Changes in bowel or urination habits

persistent cough or hoarseness

Difficulty swallowing or feeling as if something is stuck in the throat. Diagnosis and treatment


Diagnosing cancer usually involves a physical examination, blood tests, imaging tests, and a biopsy, which removes a small sample of tissue for analysis. Treatment options for cancer depend on the type and stage of the disease and include surgery, radiation therapy, chemotherapy, targeted therapy, and immunotherapy.


prevention


Although not all cases of cancer can be prevented, there are some steps that can be taken to reduce the risk of cancer.



Pay attention to healthy eating and weight

regular exercise

Avoiding Tobacco and Excessive Drinking

skin protection from the sun

Get vaccinated against cancer-causing viruses, such as HPV and hepatitis B.

Diploma


Cancer is a complex and multifaceted disease that affects millions of people worldwide. Despite advances in cancer diagnosis and treatment, many challenges remain in terms of prevention and treatment. By taking action to reduce cancer risk and raise awareness of the disease, we can work towards a world where cancer is no longer a leading cause of death. 

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