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Updated: Jul 23, 2025

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Is type III prostatitis also associated with bacterial infection?

Wei-Jie Song1,2, Jun Gao1,2, Ji-Wei Huang1,2

  • 1Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.

Frontiers in Cellular and Infection Microbiology
|July 19, 2023
PubMed
Summary

Type III prostatitis may be linked to bacterial infections. Our study found significant differences in bacterial composition in the expressed prostatic secretions of patients with chronic prostatitis compared to healthy individuals.

Keywords:
16s rRNA sequencing techniquechronic prostatitisexpressed prostatic secretionmetagenomicsmicrobiology

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Area of Science:

  • Microbiology
  • Urology

Background:

  • Chronic prostatitis (CP) is a common condition with various etiological factors.
  • The role of bacterial infection in type III prostatitis remains unclear.

Purpose of the Study:

  • To investigate the association between bacterial infection and type III prostatitis.
  • To analyze the microbial composition and function in expressed prostatic secretions (EPS) of patients with chronic prostatitis and healthy individuals.

Main Methods:

  • 16s rRNA and metagenomics sequencing techniques were employed.
  • EPS samples were collected from 57 subjects across healthy, type II prostatitis, and type III prostatitis groups.
  • Bioinformatics analysis was used for statistical significance (P<0.05).

Main Results:

  • Microorganisms were detected in the EPS of all groups.
  • Significant differences in the relative abundance of *Pseudomonas*, *Haemophilus*, *Sneathia*, *Allobaculum*, and *Enterococcus* were observed in CP patients.
  • The abundance of certain bacteria was higher in type II than type III prostatitis, with distinct functional roles identified in type III.

Conclusions:

  • Type III prostatitis may be associated with bacterial infection.
  • Further research into the specific bacterial culprits and their functions in type III prostatitis is warranted.