Not a cold with phlegm in the throat, may be caused by chronic pharyngitis, reflux pharyngitis, chronic bronchitis and other reasons. 1. Chronic pharyngitis: for example, because of the need to work usually talk more, or often a lot of smoking, eating too greasy, stimulating food, etc., may lead to chronic inflammatory reaction of the pharynx, phlegm in the throat, and is not caused by colds. 2. Reflux pharyngitis: the stomach is prone to reflux to the throat, which is likely to lead to damage to the mucous membrane of the throat, triggering reflux pharyngitis, under the stimulating effect of inflammation, resulting in phlegm in the throat, rather than phlegm in the throat caused by colds. 3. Chronic bronchitis: due to the presence of inflammation in the bronchial area, it is likely to cause the mucous membrane of the pharynx to become congested and edematous, resulting in lymphatic and follicular hyperplasia, resulting in increased secretion of the glands, which will cause the throat to have a phlegm, but it is not due to the cold. If the symptoms are serious, it is recommended to consult a doctor as soon as possible to clarify the diagnosis and cause of the disease, and then give targeted treatment.