Multiple solid nodules in the lungs refer to round or round-like lesions in the lungs. Generally, multiple solid nodules are caused by the presence of multiple solid nodules in the lungs, which can be categorized into benign and malignant, and if the density of the nodules is high, it may also be caused by diseases such as tuberculosis. Generally, the symptoms of benign nodules are not very obvious, and they do not affect the lung function and daily life, so regular checkups in the hospital will be fine, but if the nodules are malignant, they may become cancerous, and need surgery, radiotherapy, chemotherapy and other treatments. It is recommended to go to the hospital for further examination to find out the nature of the nodules, and then according to the actual situation to carry out appropriate treatment.