Positive ck7 (cytokeratin) suggests the possibility of malignant tumors and the need for further examination and treatment in a regular hospital. ck7 is a kind of examination index, can take biopsy for pathology examination, with the help of ck cytokine for immunohistochemistry, if the immunohistochemistry test result for ck7 positive, means that the tumor is malignant, that is, cancer, it is necessary to receive surgical treatment to remove the tumor, to avoid the spread of the tumor and affect the health of the body. Generally speaking, early stage cancer can have a relatively good survival period after surgical removal treatment. However, once the optimal treatment period is missed and the spread of cancer cells occurs, it may cause the patient to lose the opportunity to receive surgical treatment and cannot be cured. In addition, cancer is more dangerous, so once diagnosed with cancer, patients need to actively receive treatment under the guidance of specialists.