Seeing blood and hearing the sound can help detect laryngeal cancer in time

Timely detection of laryngeal cancer can be summarized in four words, namely, seeing blood and hearing sounds, that is, seeing the patient coughing up bloody sputum and hearing the patient's hoarse voice.

Coughing up bloody sputum or blood in the sputum is one of the clinical manifestations of laryngeal cancer. Both normal tissue cells and cancer cells rely on blood for nutrients, but cancer cells grow exponentially, and the growth rate of blood vessels cannot keep up with the growth rate of cancer cells. Therefore, cancer cells lack blood supply and develop ulcers and necrosis. Under the impact of coughing airflow and sputum, necrotic tissue will be mixed with blood and discharged. If there is blood in the sputum, it means that cancer cells have infiltrated deep into the laryngeal tissue, or the tumor has developed to the late stage.

The surface of a normal person's vocal cord is smooth, and the sound is clear and bright. If the vocal cord epithelial tissue becomes cancerous, it will directly affect the frequency of vocal cord vibration and the degree of closure, and hoarseness is likely to occur. Therefore, if a person over 40 years old has hoarseness that lasts for more than half a month, he or she must go to the hospital for laryngoscopy, fiberoptic laryngoscopy, and stroboscopic laryngoscopy to rule out laryngeal cancer, because vocal cord albinism, vocal cord keratosis, chronic atypical hyperplastic laryngitis, laryngeal papilloma and other throat diseases that invade the vocal cords can also cause hoarseness.