Anal vein thrombosis can be treated with medication in the early stage when the thrombus is small and the pain is not obvious, and it needs surgery in the late stage when the thrombus increases in size and the perianal swelling and pain. 1. Drug treatment, mainly to control inflammation, swelling and improve local microcirculation, with the reduction of inflammation, swelling relief and microcirculation improvement, the thrombus will be gradually mechanized, absorption, but also can be warm water sitz bath auxiliary treatment. Common medications are Mai Zhi Ling, hemorrhoids fast Ning, bear bile hemorrhoidal spirit suppository, erythromycin ointment, etc., follow the doctor’s instructions to use. 2. Surgical treatment, if the perianal thrombus secondary perianal swelling is obvious, perianal pain is obvious, it is necessary to perform surgical treatment, the main surgical methods including thrombus invasive decompression, thrombus stripping or hemorrhoidectomy, from the postoperative continue to give anti-inflammatory, swelling and improve local microcirculation, and to keep the wound surface clean, conducive to the healing of the wound surface. The discovery of anal vein thrombosis should be timely consultation, to avoid delaying the condition and affecting the therapeutic effect.