咯痰是多种疾病最常见的症状之一。痰是肺和支气管的分泌物,正常人可有少量痰液。如果呼吸系统发生病变,则痰量增加,而且有质的改变。不同的病,不同的病理状态,痰的成分也不一样,这就出现了形形色色的疾。注意观察痰的颜色及其质、量的差别,对于早期发现疾病,判断病情轻重,都有帮助。 Phlegm is one of the most common symptoms of many diseases. Sputum is the secretion of the lungs and bronchi, normal people may have a small amount of sputum. If the respiratory system lesions, the amount of sputum increased, but also a qualitative change. Different diseases, different pathological conditions, the composition of sputum is not the same, which appeared all kinds of diseases. Attention to observe the color of sputum and the quality and quantity differences, for the early detection of disease, to determine the severity of illness, are helpful.