Acute prostatitis, despite its low incidence, can have very serious clinical symptoms and can have many complications, some of which can pose serious threats to human health, the main complications are the following: 1. Acute urinary retention: Acute prostatitis causes local congestion and swelling, which compresses the urethra and leads to difficulty in urination, and in severe cases, acute urinary retention can occur. 2, acute vesiculitis, vasovaginitis or epididymitis: acute inflammation of the prostate can easily spread to the seminal vesicles, causing acute vesiculitis. Bacteria can also travel retrograde and enter the wall layer and outer sheath of the vas deferens via the lymphatic vessels, leading to epididymitis. 5, other: acute prostatitis can be accompanied by groin involvement pain in severe cases, serious cases can have renal colic.