Old hiccups are generally not related to grinding glass nodules in the lungs, and there is no direct connection between the two. Frequent hiccups are mainly related to the digestive system, such as eating too fast, hot and cold stimulation, indigestion, etc., which can lead to excessive gas in the stomach or spasm of the diaphragm, resulting in hiccups, most of which are functional disorders, and need to pay attention to dietary habits. Besides, hiccups can also be caused by pleurisy, subphrenic tumors and other pathological causes, which need to be actively treated. Ground-glass nodules in the lungs can be caused by lung infections, chronic inflammation, lung tumors and other causes. If it is caused by infectious lesions, there may be fever, cough, sputum and other symptoms. In the case of chronic inflammation or lung tumors, the nodules are usually asymptomatic when they are small. Ground glass nodules in the lungs do not usually cause frequent hiccups. Therefore, there is no direct link between frequent hiccups and ground glass nodules in the lungs. It is recommended to seek prompt medical attention, both diseases need to be actively consulted to determine the cause of the disease and need to be treated with appropriate therapeutic measures.