Salicylates are currently the first-line drugs for UC (ulcerative colitis), such as salazosulfapyridine and mesalazine. For mild UC, SASP preparation (salazosulfadiazine) can be used, 0.75~1.0g/d, 3 times/d, orally; or an equivalent dose of 5-ASA preparation (mesalazine) can be used and gradually discontinued after the symptoms are controlled. If the lesion is distributed in the distal colon, SASP suppository 0.5~1g/time, 2 times/d. Because of individual differences, some patients may not be effective after using such drugs, and Chinese medicine treatment may be considered, but only after the four diagnoses are combined according to the tongue, pulse and physical examination, can a suitable Chinese medicine prescription be issued. Zhang Shuangxi, Anorectal Disease Treatment Center, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine