1,Bacterial prostatitis: It is an acute or non-acute infection of the prostate caused by one or several pathogenic bacteria. The causative organisms are Gram-negative aerobic bacteria such as Escherichia coli and Pseudomonas aeruginosa.
2,Acute bacterial prostatitis: sudden onset with chills and high fever, frequent, urgent and painful urination. Difficulty in urination or acute urinary retention may occur. It is often accompanied clinically by acute cystitis. The prostate gland is swollen, painful, local temperature is elevated, the surface is smooth, and if an abscess forms there is a feeling of fullness or fluctuation.
3,Chronic bacterial prostatitis: there is urinary frequency, urgency, painful urination, discomfort or burning in the urethra during urination. There is often white discharge from the urethra after urination and after the stool. Sometimes there can be hematemesis, will pain, sexual dysfunction, psychoneurological symptoms. The prostate is full, enlarged, soft and mildly painful. If the disease is long, the prostate shrinks, hardens, and has an incomplete surface with small hard nodes.
4,granulomatous prostatitis: is a rare disease, mostly non-specific, often associated with recent urinary tract infections. In most cases, a hard nodule or diffuse hard mass in the prostate can be seen on rectal examination, which is not easily distinguishable from prostate cancer, so it is necessary to discuss.
5,Prostatodynia: also known as prostatitis-like syndrome, is a more pronounced pressure pain on both sides of the levator muscle and other places. This type accounts for a slightly lower percentage of all types of prostatitis than non-bacterial prostatitis.
Acute bacterial prostatitis is easy to diagnose because of its obvious and typical clinical manifestations; the clinical features of chronic prostatitis syndrome are more variable and inexact, and many symptoms, signs and pathological examinations in chronic bacterial prostatitis, non-bacterial prostatitis and prostatodynia are often indistinguishable. radiology and urethral cystoscopy, which may be of some help in diagnosis, cannot confirm the diagnosis. Histologic examination of the prostate is only needed in some rare types of prostatitis, such as granulomatous prostatitis.