Head and neck cancer symptoms differ depending on the location of the tumor.

So, a neoplasm on the vocal cords is found in most cases against the background of prolonged hoarseness. There may also be difficulty or pain when swallowing, a foreign body sensation in the throat, and pain radiating to the ear. With tumors inside the maxillary sinus, the voice changes - it becomes nasal, while breathing is very often disturbed, the nose is constantly clogged, over time, discharge from the nasal cavity in the form of mucus may appear.

For other signs and measures for the prevention of tumor diseases, read the link: https://www.zakon.kz/6001297-kak-raspoznat-na-rannei-stadii-rak-golovy-i-shei.html