EGFR mutation, also known as Epidermal Growth Factor Receptor, is considered as the epidermal growth factor receptor, this is a common mutation in people with lung cancer. Recent statistics show that up to 50% of Asians with lung cancer have EGFR gene mutations. In addition to the racial factor; EGFR gene mutations also appear in a high proportion of female lung cancer patients, those who do not smoke and have adenocarcinoma histology.