The causes of double lung nodules are many and complex, for example, some patients smoke a lot of cigarettes for a long time or passively inhale second-hand smoke for a long time, which is very easy to cause lung nodules. Patients who are older and also suffer from chest pain, coughing, lethargy and indigestion are also good candidates for lung nodules. In addition, lung nodules can be benign tumors, so if the patient’s family history includes a close relative who has had a tumor, it can easily be passed on to other relatives. In conclusion, when a patient is diagnosed with double lung nodules during a physical examination, do not panic, keep a good attitude, actively cooperate with the doctor to do other related tests, exclude the cause, prescribe the right medicine, and do targeted treatment at an early date.