Evaluation of the Safety of Intraperitoneal Laparoscopic Radical Prostatectomy With or Without Drainage Tube

Inclusion Criteria:

1. age: more than 18 years old, less than 85 years old;
2. Patient who pathologically diagnosed with prostate cancer and plan to undergo radical laparoscopic surgery for prostate cancer;
3. fully understand the clinical trial protocol and sign the informed consent;

Exclusion Criteria:

1. patients with surgical contraindications who cannot accept surgery;
2. patients with non-laparoscopic radical resection of prostate cancer;
3. patients with previous pelvic radiation therapy and complicated abdominal surgery;
4. patients judged by the investigator to be unsuitable to participate in the clinical trial;