The reason for Chen Meiling's pregnancy is a uterine tumor, and the reason for not having an operation may be due to various considerations of health and safety. Surgery may have certain risks and complications, and Chen Meiling may want to treat her disease through non-surgical methods. Uterine tumor is a common gynecological disease, and its treatment usually varies according to the degree of the disease and the physical condition of the patient. For larger uterine tumors, non-surgical treatment includes radiotherapy, chemotherapy and hormone therapy. These methods can effectively shrink the tumor, control the disease, and reduce the risk and recovery time brought by surgery. Therefore, Chen Meiling chose not to have surgery, which may be based on the comprehensive consideration of his own situation and treatment methods.

But the specific treatment decision should be made by the doctor according to the specific situation of the patient and the degree of the disease. For any gynecological diseases, timely diagnosis and treatment are very important. If Chen Meiling's condition changes or continues to deteriorate, he should consult a professional doctor for treatment.