At what age can you get lung cancer? can you have it at the age of 20?

Mainly in older peop: There is no specific age in lung cancer, yes it is possible at age 20, but extremely rare, it can happen even in people who never smoked. However the majority of lung cancer patients are in their 50s and older, and the longer the history of smoking, the higher the risk. There are multiple research projects going on to try to identify genetic/hereditary factors.

Highest rate, 55-65.: While there is a wider age range at which you can get lung cancer, the peak incidence is between 55 and 65 years of age. Because there are 4 main types (squamous, adeno, small cell, large cell), the age when you get it can be younger, like in the 40s, and among those who never smoked. It is very rare to get it under 40.

Very rarely: Some neuroendocrine tumors, lymphomas and rare connective tissue tumors may occur in a young person. The usual lung cancers occur in persons over 40 or so.

See below: Very uncomon to have lung cancer in patients less than 40; the median age at diagnosis is around 70.