Lung cancer is a form of cancer that affects the lungs, and can be either non-small cell lung cancer or small cell lung cancer. It is one of the most common forms of cancer in the world, and it is estimated that more than two million people are diagnosed with it each year. Lung cancer is also one of the leading causes of death worldwide, accounting for nearly one out of every five deaths from cancer.
The primary cause of lung cancer in people is smoking cigarettes. Smoking cigarettes has been linked to an increased risk of developing lung cancer due to the presence of carcinogenic substances found in tobacco smoke. Other risk factors include exposure to secondhand smoke, air pollution, asbestos, radiation therapy, and certain genetic predispositions. People who have a family history of lung cancer are more likely to develop the disease as well.
Symptoms of lung cancer depend on where in the lungs it develops, but common symptoms include coughing up blood, chest pain, shortness of breath, wheezing, hoarseness and fatigue. Diagnosis usually involves imaging tests such as X-rays or CT scans as well as biopsies or bronchoscopies. Treatment options vary depending on how far along the disease has progressed and may involve surgery, chemotherapy or radiation therapy.
It is important for people to take steps to reduce their risk for developing lung cancer by avoiding smoking cigarettes or being exposed to secondhand smoke and other pollutants. Additionally, regular checkups with your doctor can help catch any early signs or symptoms before they become serious issues. Early detection is key when it comes to treating any type of cancer and improving chances for survival.
Overall, lung cancer remains a major public health issue due to its prevalence and high mortality rate associated with it. While there have been advances in treatment options over time which have improved survival rates somewhat; prevention remains key when it comes to reducing ones risk for developing this deadly disease. Taking steps now such as avoiding smoking cigarettes or other forms of tobacco use can help protect you from ever having to battle this disease in the future.