Cancer is primarily caused by genetic mutations, which can be inherited or occur due to environmental factors like radiation, carcinogens, and lifestyle choices, leading to uncontrolled cell growth and tumor formation. 

Here’s a more detailed breakdown of the causes of cancer:

1. Genetic Factors:

• Inherited Mutations:Some cancers are linked to inherited genetic mutations, where individuals are born with a predisposition to develop certain types of cancer.
• Acquired Mutations:Most cancers arise from mutations that occur in a person’s DNA after birth, often due to environmental factors or lifestyle choices. 

2. Environmental Factors:

• Radiation:Exposure to ultraviolet (UV) radiation from the sun and other forms of radiation can damage DNA and increase the risk of cancer, particularly skin cancer. 
• Chemical Carcinogens:Certain chemicals, like those found in tobacco smoke, asbestos, and some food contaminants, can damage DNA and lead to cancer. 
• Viruses and Bacteria:Some viruses and bacteria, such as HPV and Hepatitis B, can cause chronic inflammation and increase the risk of certain cancers. 
• Air, Water, and Food Contaminants:Exposure to pollutants in the air, water, and food can also contribute to cancer development. 

3. Lifestyle Factors:

• Smoking: Smoking is a major cause of lung cancer and is also linked to cancers of the oral cavity, pharynx, larynx, esophagus, and other sites. 
• Alcohol Consumption: Excessive alcohol consumption can increase the risk of certain cancers, including liver, breast, and esophageal cancer. 
• Diet: A diet high in processed foods, red meat, and saturated fats, and low in fruits and vegetables, can increase the risk of certain cancers. 
• Obesity: Being overweight or obese is a risk factor for several types of cancer. 
• Lack of Physical Activity: A sedentary lifestyle can increase the risk of certain cancers. 
• Hormone Therapy: Women taking hormone replacement therapy may have an increased risk for breast cancer and uterine cancer. 

• What causes cancer? | Canadian Cancer SocietyExamples of risk factors for cancer include: * getting older. * smoking. * not protecting yourself from the sun. * having certain…Canadian Cancer Society
• Cancer – Symptoms and causes – Mayo ClinicNov 19, 2024 — Cancer is caused by changes (mutations) to the DNA within cells. … A number of forces can cause gene mutations, such…Mayo Clinic
• What Is Cancer? Symptoms, Causes & Types – Cleveland ClinicRisk factors There isn’t one single cause for cancer. Rather, certain things can increase your chance of developing it, like: Fami…Cleveland Clinic
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This is for informational purposes only. For medical advice or diagnosis, consult a professional. Generative AI is experimental.