Elderly people aged 75 are in the senior age group, and some of them have relatively more underlying diseases and poorer physical condition, so they need to be fully evaluated before the operation. Post-operative conditions such as disease recurrence, difficulty in urination and incontinence may arise. According to the surgical method, it can be categorized into total prostatectomy and partial prostatectomy. 1. Total prostatectomy: mainly for patients with prostate cancer. Patients may suffer from tumor recurrence, bleeding and infection after surgery. Patients need regular review after surgery, and for early recurrence, radiotherapy and second surgery are often needed. For those who have systemic metastasis or poor general condition, palliative treatment can be adopted. 2. Partial prostatectomy: mainly for patients with prostate hyperplasia. After the operation, these patients may have complications such as difficulty in urination, urinary incontinence, urethral stricture, bladder spasm, bleeding and so on. Postoperative patients with mild symptoms can be treated by using antispasmodic, analgesic and hemostatic drugs as prescribed by the doctor, such as scopolamine tablets, tranexamic acid, etc. For those with more severe symptoms, such as those accompanied by difficulty in urination and more residual urine, they may be treated by secondary surgeries such as urethral dilatation. Post-prostatectomy hazards for 75-year-olds vary from person to person, and need to be treated under the guidance of a doctor to minimize post-operative complications.