A dry cough a few times a day may or may not be cancer. If it is just a dry cough a few times a day with no other signs of discomfort. Then the chance of cancer is smaller, it may be cough variant asthma, gastroesophageal reflux disease, allergic cough and so on. The common clinical manifestations of lung cancer patients are irritating dry cough and absence of sputum. Besides, patients may be accompanied by chest tightness, chest pain, dyspnea and other clinical manifestations, which need to be clarified by CT, puncture and other examinations under the guidance of doctors to find out the specific causes. In addition, some diseases of the respiratory tract also appear dry cough, cough variant asthma, chronic pharyngitis, variant cough, etc., it is recommended that under the guidance of the doctor through the relevant tests to clarify the diagnosis. When a dry cough occurs, you should go to the respiratory department to get a clear understanding of the cause and then actively deal with it.