Anal swelling and hot and spicy may be due to improper diet, hemorrhoids, anal inflammation. 1. Improper diet: after consuming spicy stimulating food, due to capsaicin can not be absorbed by the intestinal tract, so after defecation will cause the anus to be stimulated by capsaicin, resulting in a hot and spicy swelling. 2. hemorrhoids: usually hemorrhoids by fecal stimulation, infection, compression and other factors will make hemorrhoids mucosal congestion, edema, erosion, etc., accompanied by anal pain, blood, etc., some of the more serious hemorrhoids will also appear hemorrhoidal prolapse of hemorrhoidal nuclei, hemorrhoids may cause anal swelling, hot and spicy symptoms appear. 3. anal inflammation: anal inflammation is clinically refers to the perianal and anal area inflammatory lesions, usually due to Staphylococcus aureus infection. This disease can cause pain, itching, increased secretion, anal swelling and other symptoms around the anus. The presence of ulceration of the skin may cause symptoms of burning pain in the anus. Patients with the presence of anal swelling and fiery symptoms can not be relieved, it is necessary to go to the hospital in a timely manner for examination and treatment, do not use private medication, so as not to cause danger and delay.