STI

Genital Infections: An Overview

std genital infections
STI

Genital Infections: An Overview

References UK clinical guidance from the NHS, the British HIV Association (BHIVA), and the British Association for Sexual Health and HIV (BASHH). Last updated: April 2026.

Genital infections include both sexually transmitted infections and conditions that aren’t STIs but affect the genital area. Understanding the range of possible causes helps you recognise symptoms and seek appropriate care. Most genital infections are easily treated once properly diagnosed.

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Common Genital Infections

TypeExamples
Bacterial STIsChlamydia, gonorrhoea, syphilis, Mgen
Viral STIsHerpes, HPV, HIV, hepatitis B
Parasitic STIsTrichomoniasis, pubic lice, scabies
Non-STI bacterialBV, UTI
FungalThrush (candida)
Skin conditionsPsoriasis, eczema, dermatitis

Common Symptoms

  • Unusual discharge
  • Itching or burning
  • Pain during sex or urination
  • Sores, blisters or bumps
  • Unusual bleeding
  • Rashes or redness

Getting Help

  • Sexual health clinics — free, confidential, expert care
  • GP surgery
  • Home test kits for STI screening

Key Principles

  • Don’t self-diagnose — testing gives accurate answers
  • Most infections are treatable or curable
  • Partners may need testing and treatment
  • Regular screening catches silent infections

Read more: Vaginal infections | Bacterial STIs | Viral STIs

Frequently Asked Questions

Are all genital infections STIs?

No — thrush, BV and UTIs are not usually STIs.

How do I know what I have?

Testing and clinical assessment give the answer.

Are genital infections serious?

Most are easily treated. Some untreated STIs can cause serious complications.

Sources

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