Lung cancer

Cancer is a medical condition in which the body starts to uncontrollably grow some cells that can also end up spreading to other parts of the body. Lung cancer is a type of cancer that occurs and affects the infected person's lungs. It causes uncontrolled growth of lung tissues and can spread rapidly to other regions such as lymph nodes, brain, adrenal glands, liver, and bones. 

The exact cause of lung cancer is still unknown. However, the leading cause of this disease is smoking, and the risk of incurring lung cancer has been associated with prolonged smoking. Quitting smoking has been shown to significantly decrease a person's chance of developing the disease.

In the initial stages, lung cancer does not show any symptoms. Symptoms that appear at an advanced stage usually include a persistent cough that doesn't go away, spotting blood while coughing, shortness of breath, hoarseness, losing weight, chest pain, and headaches.

There are different types of lung cancers, and the treatment for the same depends on the type and stage of the lung cancer. Treatment modalities can include a combination of surgery, chemotherapy, radiotherapy, and immunotherapy.