Lung nodules 5.5 mm in daily life considerations are mainly diet, daily habits and environment, mental and emotional, regular follow-up and so on. 1. Diet: Sufferers of lung nodules usually need to eat a balanced diet of meat and vegetables, eat more fresh fruits, vegetables and other foods rich in vitamins. Avoid spicy and stimulating food, smoking and alcohol. 2. Daily habits and the environment: in the usual daily habits need to have a good habit of living, to have a regular routine, can not stay up all night. The indoor environment should be ventilated to avoid excessive dryness or humidity; wear a mask when going out to avoid contact with dust; smokers need to quit smoking to reduce the stimulation of smoke on the lungs. 3. Mental mood: patients should have a good mental mood, avoid excessive stress, anxiety, depression, etc., and family members should communicate and chat with patients more often. 4. Regular follow-up: Lung nodules need to follow the doctor’s instructions for regular follow-up, generally 6 to 12 months for review, in order to observe the development of nodules at any time. Lung nodules need to go to the hospital in time to check the specific cause and treatment, so as not to delay the condition.