Symptoms of supraglottic laryngeal cancer can be categorized into early symptoms and middle and late symptoms. 1. Early symptoms: Most patients with supraglottic laryngeal cancer do not have obvious clinical symptoms in the early stage, and very few patients may have hoarseness. 2. Middle and late stage symptoms: As the patient’s condition progresses, the cancer cells have metastasized and spread to distant places. During the period of illness, clinical symptoms such as difficulty in breathing, blood in sputum, throat blockage, chest tightness and shortness of breath may appear. Since the condition of each patient with supraglottic laryngeal cancer is different, the specific clinical symptoms may also be different. It is recommended to go to ENT department of hospital as soon as possible and receive treatment under the guidance of professional doctors to avoid delaying the condition.