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Syphilis: Symptoms, Causes & Treatment

الزهري

Quick summary

STI from Treponema pallidum in stages (primary, secondary, tertiary). Treated with IM penicillin G.

Last updated: 21 July 2026
Medical disclaimer: This content is for educational purposes only and is not a substitute for consulting a qualified physician. Do not use this information for self-diagnosis or self-treatment.

Treatment

  • Benzathine penicillin G 2.4 mIU IM single dose (early).
  • 3 weekly doses for late stages.
  • Doxycycline alternative if PCN allergy.