Lung adenocarcinoma IA1 is highly differentiated with relatively low severity. Lung adenocarcinoma IA1 indicates that the lung adenocarcinoma is in early stage and the maximum diameter of the tumor is less than or equal to 1 cm, at this time, the tumor is still confined to the lung tissue and has not yet metastasized. At this time, surgical resection can be preferred and the prognosis is better after surgery. Highly differentiated refers to the higher growth and maturity of tumor cells, which is more similar to normal tissue cells, indicating a lower degree of malignancy. For patients with lung adenocarcinoma IA1 hyperdifferentiated, they should be actively treated by surgical resection, which usually achieves a good therapeutic effect. If there is no recurrence after surgery, long-term survival is possible. Even if the disease recurs after surgery, the prognosis is relatively good. For patients with highly differentiated lung adenocarcinoma IA1, they should seek medical treatment in time and under the guidance of professional doctors. Regular monitoring is also needed after treatment, so that early treatment can be given if problems are found.