Cytokeratin 19 fragment 3.32ng/ml is mildly elevated and may be present in benign diseases such as pneumonia, or does not exclude the presence of malignant tumors such as lung cancer and bladder cancer, which require further differential diagnosis. Cytokeratin 19 fragment, also known as CYFRA21-1, has a normal value range of <3.3 ng/ml. 3.32 ng/ml of cytokeratin 19 fragment is slightly elevated. CYFRA21-1 is mainly found in organs rich in epithelial tissue, such as the mammary gland, lungs, bladder, intestines, and uterus. The value can be elevated in the presence of benign diseases such as mastitis, pneumonia, and tuberculosis, as well as malignant tumors such as non-small cell lung cancer of the lung, breast cancer, and bladder cancer. CYFRA21-1 is usually only mildly elevated (<10ng/ml) in benign diseases, and CYFRA21-1 values may be significantly elevated in the presence of malignant tumors. Cytokeratin 19 fragment 3.32ng/ml belongs to slightly elevated, which may be caused by benign diseases, and the possibility of lung non-small cell lung cancer, bladder cancer and so on cannot be ruled out. It is suggested that the patient should consult the doctor in time, combine with other examination results to make a comprehensive judgment, and follow the doctor's instructions for further treatment and examination.