What are terotogen?

A teratogen is an agent (physical, chemical, or biological) that can disrupt the development of an embryo or fetus. Teratogens can cause a wide range of birth defects, including physical malformations, mental retardation, and functional impairments.

Some common teratogens include:

* Alcohol: Alcohol can cause fetal alcohol syndrome (FAS), which is characterized by a range of physical and mental problems, including growth retardation, facial deformities, intellectual disabilities, and behavioral problems.

* Tobacco smoke: Tobacco smoke contains over 4,000 chemicals, many of which are harmful to the fetus. Smoking during pregnancy can increase the risk of miscarriage, premature birth, and low birth weight. It can also cause respiratory problems, learning disabilities, and behavioral problems.

* Illicit drugs: Illicit drugs, such as cocaine, heroin, and methamphetamine, can cross the placenta and reach the fetus. They can cause a variety of birth defects, including growth retardation, premature birth, and neural tube defects.

* Certain medications: Some medications, such as thalidomide and isotretinoin (Accutane), can cause birth defects if taken during pregnancy. It is important to talk to your doctor about the safety of any medications you are taking before you become pregnant.

* Environmental toxins: Environmental toxins, such as lead, mercury, and pesticides, can cross the placenta and reach the fetus. They can cause a variety of birth defects, including developmental delays, learning disabilities, and behavioral problems.

If you are pregnant or planning to become pregnant, it is important to avoid teratogens and take steps to protect your baby's health.