What causes yellow sputum?

In many cases, spitting up yellow sputum may be caused by lung heat and cough, especially when the wind-cold turns into heat or the influence of obesity and heat toxins, which will manifest as symptoms of coughing up yellow sputum. At the same time, there will also be shortness of breath, fatigue, spontaneous sweating and night sweats. Children with bronchitis and pneumonia will also show symptoms of excessive yellow sputum.

1. Lung heat, cough, and yellow sputum

Lung heat, cough and sputum are caused by wind-heat evil toxins invading the lungs, or wind-cold turning into heat, which burns the lungs and fails to clear and descend the phlegm. The phlegm-heat inside the lungs leads to heat stagnation in the lungs, resulting in a symptom characterized by cough. It often occurs after a lung heat cold or without cold symptoms. Lung heat cough is often seen in children with low immunity, and the main manifestation is recurrent coughing. Clinically, Chinese patent medicines such as Xiaoer Feire Kechuan Oral Liquid are mainly used for treatment, which can significantly promote the peristalsis of pharyngeal and bronchial cilia and enhance the expectoration effect. At the same time, the medicine can cover the inflamed pharyngeal mucosa, relieve inflammatory stimulation, and have a significant and lasting antitussive effect. One of the main symptoms of lung heat cough is repeated coughing, often accompanied by chills and fever, cough and chest pain, little and sticky sputum, difficulty breathing, dry mouth and throat, and a thin yellow tongue coating. Some are also accompanied by symptoms such as dull pain in the chest and flanks, shortness of breath, fatigue, spontaneous sweating, night sweats, low-grade fever or hot flashes, pale complexion, and weight loss.

2. Bronchitis, pneumonia and yellow sputum

Bronchitis in children is usually a complication caused by viral infections such as the common cold and influenza, but may also be caused by bacterial infection. It is a common acute upper respiratory tract infection in children. In the early stage of acute bronchitis, there is a dry cough, and the amount of sputum gradually increases and becomes mucopurulent sputum. If the treatment is not thorough, it can easily turn into chronic bronchitis, with persistent cough as the main symptom, which does not heal for many months and worsens in the morning and evening, especially at night. The amount of sputum may be more or less, and it is faster to cough it out. Clinically, some Chinese herbal preparations for relieving cough and asthma can be used during the remission period, which can alleviate the symptoms to a certain extent.

3. Dry lungs, cough and yellow phlegm

Cough caused by dry evil damaging the lungs. The symptoms include cough with little sputum, hoarseness in the throat, thirst and thirst, constipation and dry skin. The main clinical manifestations are repeated coughing and coughing up yellow sputum, accompanied by dry mouth, sore throat, constipation, fever or wheezing, red tongue, thin yellow or greasy tongue coating, and little fluid. The treatment should be to clear dryness and moisten the lungs, with Qingzao Jiufei Decoction etc.