Anal canal inflammation can be manifested as anal canal pain, anal itching, wetness, abnormal defecation, anal swelling, as well as the emergence of systemic symptoms (such as chills, irritability, etc.). 1. Anal canal pain: manifested as burning pain in the anal canal, aggravated by pain during defecation or sitting, long-term fecal stimulation can lead to persistent throbbing pain, as well as the emergence of mobility, fidgeting. 2. Anal itching and wetness: recurrent inflammation and poor bowel habits can cause anal itching and wetness. 3. Abnormal defecation and bloating: due to the heavy pain during defecation, patients will appear to hold back the bowel movement, which may lead to constipation, as well as anal bloating and a sense of urgency and heaviness. 4. Systemic symptoms: low-grade fever may occur in mild cases, and high fever, chills, irritability and loss of appetite may occur in severe cases. Patients with anal canal inflammation need to go to the hospital in time, the cause of the disease, follow the doctor’s instructions for active treatment, to avoid self-medication, causing adverse reactions.