We did not notice any open rhinolalia , dysphagia and dysphonia .

未发现任何开放性鼻音、吞咽困难和发音困难。

Symptoms include hyperventilation , coughing , dysphonia , anorexia , chest pain and increased susceptibility to tuberculosis .

症状包括换气过度、咳嗽、发声困难、食欲不振、胸口疼痛，同时容易罹患肺结核。

Another potential cause is muscle tension dysphonia , which occurs when the muscles around the larynx , or voice box , are too tight and causes a person to use excess tension while speaking .

当喉部周围的肌肉过于紧张时，患者说话时需要用太多的力气，这样会造成肌肉紧张性发声障碍。