Secondary syphilis is one of the few infectious diseases that produces rashes on the palms and soles, as well as a generalized rash. If an ulcer on the penis is followed several weeks later by a rash, the person should always be evaluated for syphilis.
Review Date 10/25/2020
Updated by: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.