What Are The 3 Most Diagnosed Cancers In The World?

Cancer is one of the main causes of death in America. It is mandatory to be aware of cancer and follow a healthy life. There will be several types of cancer in the human body such as liver, breast, prostate, and stomach. Lung cancer is the most diagnosed cancer in the world. Breast and colorectal are the other two common cancers. 

Most Diagnosed Cancers In The World

This article will give you a deep understanding of the 3 most diagnosed cancers in the world. 

Most Diagnosed Cancers In T

  • Lung
  • Breast
  • Colorectal

Lung Cancer 

Lung cancer is the most leading cause of cancer deaths. Smoking people have a high risk of lung cancer. 

Lungs are the core part of your respiratory system. It is two spongy organs in your chest that inhale oxygen and exhale carbohydrates. These lungs were infected by the cancer cells. 

Smoking is the main reason behind lung cancer. The persons who were exposed to secondhand smoke also had lung cancer. However, people who never smoke or were exposed to secondhand smoke also have cancer. 

Usually, lung cancer did not have any early symptoms. However, the symptoms come when the cancer is advanced. Severe cough with blood, heavy breathing, chest pain, headache, loss of appetite, lack of energy, and an ache when breathing are the symptoms of lung cancer. 

Smoking and exposure to secondhand smoking are the highest risk factors of lung cancer, along with exposure to radon gas, and carcinogens and the person who already has a history of lung cancer in the family. So, try to keep away from the possible risk factors and stay healthy always. 

Breast cancer

Breast cancer is the most common cancer in women. It forms in the cells of the breast and both men and women can be affected by breast cancer. However, most reported cases were women with breast cancer. 

A breast lump, a newly inverted nipple, and redness in the skin of the breast are the common symptoms of breast cancer. There are also changes in breast shape and the patient will feel the peeling of the skin around the nipple. 

Many surveys and researches proved that the changing lifestyle and environment is the main cause of breast cancer. Variation in the hormone is also a reason behind breast cancer. However, there is also breast cancer in many people who do not have these types of risks. So it is good to follow a healthy lifestyle to prevent these types of risks. 

Colorectal Cancer

Colorectal Cancer is one of the most diagnosed cancers in the world. It is colon cancer and rectal cancer but combined as colorectal because they have common features. 

The colon is the part of the large intestine and it is the end position of the digestive tract. Usually, it begins as small growth called polyps forms inside the colon and gradually these polyps lead to colon cancer. 

Polyps do not give any symptoms or give only a few symptoms. So doctors recommend continuous checkups to prevent the transformation of polyps into colon cancer. 

A change in your bowel system, rectal bleeding, weakness, and sudden weight loss are the most common symptoms of breast cancer.

Colon cancer can be affected at any age. But most colon cancer patients are above 50. Obesity, alcohol, smoking, diabetes, and genetic history of colon cancer increase the risk of colon cancer. Food habits are also the main reason behind colorectal cancer. So it is mandatory to follow a high fiber low-fat diet to decrease the risk of colon cancer.

A healthy weight and healthy food can prevent colon cancer at a limit. So following a healthy lifestyle is important. 


Lung, breast, and colorectal are the main 3 most diagnosed cancers in the world. In this blog post, we had given an overall idea about the most common type of cancers. 

Hope you got the details about the risk factors. So, try to follow a healthy life. If you have any symptoms, don’t panic.

Because there are many treatments if we are diagnosed with cancer at an early stage. So it is better to consult a doctor if you feel any symptoms of cancer are in you. 

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