This chapter provides detail description of infections in pregnancy. The chapter has 1 well illustrated diagram. Urinary tract infections during pregnancy, chickenpox in pregnancy, complications of chickenpox, exposure to varicella infection, pulmonary tuberculosis, malaria in pregnancy, use of different anti-malarial during pregnancy, jaundice in pregnancy, bilirubin metabolism, viral hepatitis, liver function test, hepatitis B, non-hepatotropic virus, alcoholic hepatitis, gallstones, vaginitis in pregnancy, bacterial vaginitis, candidiasis, Chlamydia trachomatis, effect of vaginal infection on pregnancy are described in detail. 14 tables are included to highlight complications and management of chickenpox, effects of pregnancy on tuberculosis, its treatment protocol, malaria in pregnancy and presentation of jaundice. 3 flow charts are added to depict tuberculin test and sputum examination. Total 225 references are given. References are given at the end of each section for further reading.