| Term | Definition |
| toxoplasmosis | infection in pregnancy can lead to hydrocephalus, microcephaly, cataracts, deafness |
| syphilis | infection during pregnancy can lead to hydrocephalus, osteitis, rhinitis |
| varciella zoster | viral infection, can lead to microcephaly, chorioretinitis of fetus |
| rubella | viral infection; can casue mircocephaly, cataracts, heart defects in fetus |
| herpes simplex | viral infection; can cause microcephaly, microphthalmia |
| cytomegalovirus | viral infection; can cause deafness, microcephaly, chorioretinitis in fetus |
| ethanol | agent for FAS; facial abnormalities, low birth weight |
| dilantin | agent for FDS; results in heart defects; cleft palate |
| maternal diabetes | child w/ macrosomia (excessive birth weight); brain abnormalities; heart defects |
| warfarin | teratogen; low birth weight, hypoplastic nose |
| retinoic acid (vitamin A) | teratogen; craniofacial defects, heart & limb defects; severe mental delay |
| maternal PKU | condition in mother that can lead to low BW; growth delay; heart defects |
| fetal dilantin syndrome | condition that results in low birth weight; coarse face; heart defects; mild development delay |
| DES (diethylstilboestrol) | pharmacetuical; uterine malformations, vaginal carcinomas |
| lithium | pharma; heart defects "Ebstein's anomaly" |
| streptomycin | pharmaceutical; deafness in infant |
| tetracycline | phara w teratogenic effect; dental enamel hypoplasia |
| thalidomide | teratogenic pharma; phocomelia, heart and ear anomalies |