Syphilis is a sexually transmitted infection caused by the spirochete Treponema pallidum

Symptoms can include:

  • small, painless ulcers that typically appear on the penis, vagina, or around the anus, but can occur in other places such as the mouth
  • an erythematous rash that often affects the palms of the hands or soles of the feet
  • small growths (similar to genital warts) that may develop on the vulva in women or around the anus in both men and women
  • white patches in the mouth
  • tiredness, headaches, joint pains, a high temperature (fever) and swollen glands in your neck, groin or armpits