Adenomas are benign tumors that occur in the glandular epithelium and are mainly secretory in function. They are usually not serious and can be initially judged by imaging examinations such as CT and ultrasound and are easy to treat. However, some adenomas have the possibility of malignant transformation, such as thyroid adenoma and colorectal adenoma, which are relatively serious if malignant transformation occurs, so early detection and treatment are recommended. Adenomas are more mature in differentiation, slow in growth, and only grow locally without peripheral invasion or distant metastasis, so they have relatively little impact on the body and mostly cause symptoms of local compression and obstruction of the lumen. Adenomas can occur in various tissues containing glandular epithelial cells, such as intestine, breast, thyroid, etc. When adenomas occur in the nasal cavity and gastrointestinal tract, they can show polyp-like changes and easily cause bleeding. Adenomas are usually clearly demarcated from the surrounding normal tissues and have an envelope, and surgical removal can achieve a cure. If adenoma is found, you should follow the doctor’s advice and undergo surgery to completely remove the diseased tissue and send it for examination in time to exclude the possibility of malignant change. Regular post-operative review is also needed to prevent recurrence, which is usually done every six months after treatment.