The early symptoms of laryngeal cancer vary among individuals and are related to the specific personal reactions and type of laryngeal cancer. In the case of glottic laryngeal cancer, the early signs are typically hoarseness, which can be sudden, persistent, or recurrent and is generally exacerbated after excessive use of the voice. This condition can be directly assessed using a laryngoscopy followed by a pathological biopsy. Some patients may also experience a foreign body sensation, pain, or burning sensation in the throat. If the cancer covers a relatively larger area, it may cause difficulty in breathing. In such cases, prompt examination is necessary to determine the nature of the condition and consider a comprehensive treatment approach primarily involving surgery.