Is there a risk of tumor spread with lung biopsy?

Lung biopsy generally carries no risk of tumor spread, but there may be some risks if the procedure is improperly performed or if the patient's health condition is poor. The details are as follows:

Lung biopsy is a safe and effective diagnostic method used to determine the nature of lung lesions, especially in diagnosing lung tumors. When performed by an experienced physician, the biopsy needle quickly penetrates the tumor, obtains a tissue sample, and is promptly withdrawn, typically without causing tumor dissemination. Moreover, modern biopsy techniques usually employ fine-needle aspiration or small incisions, minimizing trauma to surrounding tissues and reducing the likelihood of tumor cells spreading along the needle tract.

If the physician performs the biopsy incorrectly—such as inserting the needle too deeply or at an incorrect angle—it may increase the risk of tumor tissue leakage, potentially leading to tumor spread. Factors such as the patient’s overall health, tumor size, and tumor location can also influence the procedure's risk. Patients with abnormal coagulation function have a higher risk of bleeding after biopsy. Tumors located near the pleura or blood vessels may lead to complications such as pneumothorax or hemothorax if these structures are damaged during the procedure.

It is recommended to seek timely medical attention at a hospital, undergo appropriate diagnostic evaluations under the guidance of qualified physicians, and follow medical advice for treatment.