Right lung middle lobe nodule shadow 4.6mm is usually not serious. The severity of right middle lobe nodule is mainly judged by the size and nature of the nodule, if the patient’s right lung nodule is less than 5mm, most of them are benign, if the patient’s right lung nodule is more than 8mm, then the patient should be vigilant about the possibility of malignancy, thus the right middle lobe nodule shadow 4.6mm usually belongs to the non-serious situation, the probability of malignancy is less than 1%. Patients should pay attention to the diet of some high protein, easy to digest food such as millet porridge, black rice porridge, eggs, etc., the patient can moderate exercise such as walking, swimming, etc., the patient should avoid strenuous exercise and spicy stimulating food, and at the same time to limit the intake of high-fat food, quit smoking and drinking. It is recommended that patients go to the hospital in time for examination, symptomatic treatment under the guidance of the doctor, as well as regular hospital review.