rú / guǒ / chū / xiàn / ké / xiě / zhèng / zhuàng / yīng / jǐn / kuài / qǐng / yī / shēng / jiǎn / chá如果出现咳血症状,应尽快请医生检查。If you cough up blood, you should see a doctor for an examination as soon as possible.