Neurodermatitis, when left untreated for a long time, can cause infection, lymphadenitis and hyperpigmentation, which seriously affects the daily life and work of patients. 1. Infection: infection is one of the consequences of untreated neurodermatitis, because neurodermatitis will cause patients to have a burst of intense itching, patients will be repeatedly scratching, thus stimulating bacterial infection. 2. Lymphadenitis: the consequences of untreated neurodermatitis also include lymphadenitis, mainly due to repeated scratching and irritation factors. 3. Hyperpigmentation: Itching and scratching caused by neurodermatitis can lead to changes in skin color, such as hyperpigmentation or hypopigmentation. In addition, neurodermatitis may affect the psychological aspect of the patient because of the itching and scratching, and may also affect daily life and work. It is recommended that the patient should visit the hospital in time and be actively treated under the guidance of the doctor.