DefinitionCongenital syphilis is a severe, disabling, and often life-threatening infection seen in infants. A pregnant mother who has syphilis can spread the disease through the placenta to the unborn infant.Alternative NamesCongenital lues; Fetal syphilisCauses, incidence, and risk factorsCongenital syphilis is caused by the bacterium Treponema pallidum, which is passed from mother to child during fetal development or at birth. Nearly half of all children infected with syphilis while they are in the womb die shortly before or after birth.Despite the fact that this disease can be cured with antibiotics if caught early, rising rates of syphilis among pregnant women in the United States have increased the number of infants born with congenital syphilis.SymptomsSymptoms in newborns may includ