Condition guide

Chancroid

Chancroid overview, including painful genital ulcers.

Overview

Chancroid is a bacterial STI caused by Haemophilus ducreyi. It typically causes painful genital ulcers and swollen lymph nodes. It is less common in many regions but remains part of ulcer evaluation.

Causes and transmission

Transmitted through sexual contact with ulcer material.
More common in some regions and populations.

How it is assessed

Clinical suspicion plus PCR or culture where available.
Other ulcer causes must be excluded.

Management considerations

Antibiotic treatment under medical supervision.
Ulcer care and partner evaluation may be needed.

Prevention

Avoid contact with ulcers.
Prompt testing and treatment reduce spread.

Key points

Causes painful ulcers
May cause buboes
Requires specific testing
Treatable with antibiotics

When to seek care

Painful genital ulcer
Ulcer with purulent base
Swollen groin lymph nodes

Clear answers

Frequently asked questions

Is Chancroid always sexually transmitted?

Not necessarily. Some conditions in this directory are STIs, while others are genital or reproductive health conditions that may be associated with sexual activity or have other causes. The page explains the distinction.

Can symptoms appear without an infection?

Yes. Skin irritation, anatomical variation, inflammation and non-infectious conditions can cause similar symptoms. Testing and examination are needed before assuming an STI.

When should I seek medical advice?

Seek prompt advice for new sores, discharge, pelvic or testicular pain, painful urination, fever or symptoms that worry you. Early assessment can prevent complications and clarify the cause.

Should my partner be involved?

For many STIs, partner evaluation may be recommended to prevent reinfection and support treatment. The need depends on the condition, timing and results.

Keep learning

Related guides

Syphilis

Syphilis overview covering stages, testing, treatment and prevention.

Genital Herpes

Genital herpes symptoms, testing, recurrence and long-term management.

HIV

Human immunodeficiency virus infection, its testing, prevention and long-term care.

Primary Syphilis

The first stage of syphilis, typically marked by a painless chancre.

Privacy and dignity

A respectful space for sensitive concerns

Sexual health questions can feel personal. The goal of every consultation is to provide clear medical information, explain options and support next steps without judgment, pressure or unnecessary disclosure.

Ask questions at your own pace.
Share only the information needed for safe care.
Request discreet communication where appropriate.
Bring a trusted support person if that helps.