Anal pruritus refers to the itching of the restricted skin around the anus. There are many diseases that cause itching, including anal pruritus, perianal skin eczema, pinworm disease and perianal diseases. For pruritus and perianal skin eczema, the most common ointment is hormonal ointment, such as hydrocortisone butyrate ointment and halometasone ointment, but they cannot be used for a long time, and long-term use can lead to adverse consequences such as skin atrophy, increased hairiness and capillary dilation. There are more kinds of Chinese ointments, which mainly play a role in clearing heat and dampness, dispelling wind and relieving itch, such as dehumidification and anti-itch ointment, etc. However, in clinical practice, it is still necessary to choose according to the theory of Chinese medicine to identify the evidence in order to have a better effect. The anal itching caused by pinworm disease requires parasiticidal treatment, while keeping the anus clean and hygienic, the itching symptoms will be relieved. Anal diseases such as anal fissure, anal fistula, hemorrhoids, anal sinusitis, rectal prolapse, anal incontinence, anal itching caused by the stimulation of secretions and intestinal fluids, need to lift the causes of itching based on comprehensive treatment, in order to achieve good results. There are many causes of anal itching, and it is generally treated with antihistamines, calcium, sedatives and Chinese medicine, with better results with internal and external use.