The main sequelae of prostate cavity intervention are mainly bleeding, infection and difficulty in urination. 1. Bleeding: Prostate cavity intervention is a minimally invasive treatment, which may cause mucous membrane damage during the procedure, resulting in bleeding. However, most of the hematuria is not serious and short-lived, and usually disappears gradually after surgery. If the symptoms of hematuria persist, you need to consult a doctor in time. 2. Infection: Because the prostate cavity intervention is operated through the urethra, it increases the risk of local bacterial and other pathogen infections, which may lead to prostatitis or other genitourinary inflammation. 3. Difficulty in urination: The operation process of prostate cavity intervention may lead to damage to the urethral mucosa, which may cause urethral stenosis or adhesion, and difficulty in urination. It is recommended to consult a doctor to identify the cause of the symptoms and to carry out targeted treatment.