Boogers are not harmful to the human body, and the components that form them are not particularly damaging to the human body. Boogers can be secretions of nasal vestibular glands, or formed by the fusion of tissue debris produced by the metabolism of the nasal mucosa and the precipitation of impurities in the outside air. Sometimes boogers are mucous, sometimes dry, boogers generally exist in the nasal vestibule or inside the nasal cavity, and won’t be eaten in the stomach, so they are not very harmful to the human body. If the boogers are too much, it may be due to inflammation of the nasal vestibule or nasal mucosa, so we should observe whether there are other clinical symptoms such as sneezing, yellow mucus nasal discharge, nasal pain, etc. If there is any discomfort, we should go to the hospital in time. If there is discomfort should be timely to the hospital’s otolaryngology consultation, under the guidance of the doctor to improve the relevant examination to clarify the diagnosis and standardized treatment.