Patients have foreign body sensation in the throat area, but it is not painful or itchy, the specific reasons are as follows: 1, chronic inflammatory throat: patients may have excessive use of voice to speak in daily work and life, there may also be long-term heavy smoking, drinking, eating spicy and stimulating diet, exposure to air pollution environment and other factors, it will easily lead to chronic inflammation in the throat. 2, obvious lymphatic follicular hyperplasia in the throat: Tend to further aggravate the appearance of this foreign body sensation symptoms.3, physical factors: some patients may be affected by recent adverse mental and emotional factors, or have sleep deprivation, repeated fatigue, staying up late and other factors, may also lead to the production of foreign body sensation in the throat area.4, other: some patients may also have cysts, polyps, papillomas, etc. in the throat, as well as benign and malignant hyperplasia If necessary, further detailed examination is needed.