Sexually transmitted infections mnemonic

Painful versus painless genital ulcers

The mnemonic

Painless Syphilis, Painful Chancroid and Herpes

What each word stands for

  • SyphilisPainless, indurated chancre
  • ChancroidPainful, soft ulcer with ragged edges
  • HerpesPainful grouped vesicles that ulcerate

Why it matters clinically

Quick bedside separation of ulcer types.

Where it stops being reliable

LGV and granuloma inguinale are less typically painful and are not covered.

Teaching aid, still awaiting independent review. Confirm facts in a standard source.

More mnemonics

Common questions

What is the Sexually transmitted infections mnemonic?

Painless Syphilis, Painful Chancroid and Herpes. It helps you recall: Painful versus painless genital ulcers.

What does "Syphilis" stand for?

Painless, indurated chancre

What does "Chancroid" stand for?

Painful, soft ulcer with ragged edges

What does "Herpes" stand for?

Painful grouped vesicles that ulcerate

What are all the parts of the Painless Syphilis, Painful Chancroid and Herpes mnemonic?

Syphilis: Painless, indurated chancre; Chancroid: Painful, soft ulcer with ragged edges; Herpes: Painful grouped vesicles that ulcerate.

Which topic does this mnemonic belong to?

It belongs to Sexually transmitted infections in Dermatology.

Where does this mnemonic stop being reliable?

LGV and granuloma inguinale are less typically painful and are not covered.

How is this useful clinically?

Quick bedside separation of ulcer types.

How do I make this mnemonic stick?

Say it aloud, write it from memory tomorrow, then again in a week. Then test yourself on a Dermatology question about Sexually transmitted infections.

Is this a standard mnemonic?

It is a teaching aid written or adapted by our team. Some resemble ones students share informally. Check any fact that matters in a standard source.