There is no accurate clinical statement that solid nodules are considered risky, the nature of the nodule is based on a combination of factors and consultation with a doctor is recommended. Solid nodules are abnormal, substantial nodules that grow within normal tissues and organs of the body and are relatively dense. Solid nodules are more likely to be malignant than cystic and cystic-solid nodules, provided that other factors are taken into account. Solid nodules may start out as benign lesions and may become malignant as the disease progresses, while cystic nodules are usually hollow, contain cystic fluid, and are usually benign. The nature of the nodule needs to be judged comprehensively. Generally, if the nodule is solid, hypoechoic, accompanied by tiny calcifications, rich blood supply, irregular margins, and enlarged adjacent lymph nodes, the chance of malignancy of the nodule will be higher and the risk of malignancy will be higher. The most reliable method is biopsy pathologic examination, which can clarify the benign or malignant nature of the nodule. Patients with nodules should go to the hospital for comprehensive analysis and treatment under the guidance of doctors.