Low-risk Colorectal Adenoma

1. Complete a large-sample, multicenter, randomized blank-controlled clinical trial to evaluate Shenling Baizhu Granules for the prevention of colorectal adenoma recurrence. 2. Generate high-level, internationally recognized clinical evidence to support the development of clinical practice guidelines for the prevention and treatment of colorectal adenoma using traditional Chinese medicine, and to strengthen the recommendation level of Shenling Baizhu Granules in clinical guidelines. 3. Define the clinical characteristics of patient subgroups most likely to benefit from Shenling Baizhu Granules for preventing colorectal adenoma recurrence.