There are 3 main reasons to consider for the development of ulcers in the nasal passages: the first, due to inflammation, is often caused by the patient picking their nose or pulling out their nose hair. In the second case, the main consideration is due to the patient’s lack of vitamins, which is particularly prone to the formation of ulcers in the nasal cavity. Patients are advised to eat more fresh vegetables and fruits to supplement vitamins. In the third case, it is mainly considered that the local mucous membrane of the nasal cavity has the possibility of cancer, which is related to genetic factors, and sometimes also related to the patient’s large amount of smoking, drinking, or often in a hurry, fire, and staying up all night, and the cause of the disease can only be clarified in the treatment before further symptomatic treatment. At the same time, patients should develop good habits in life, do not dig the nostrils, and need to pay attention to the nasal mucosa moisturizing, can spray with physiological sea saline, if there is the possibility of malignant changes, must be actively examined and treated.