👉 A microsomatous embryo is an abnormal type of fetus that has a smaller body size and fewer cells than expected for its age. It is characterized by a small head, short limbs, and a lack of any major organs or structures. This condition can be caused by various factors such as genetic mutations, environmental factors, or a combination of both. Microsomatous fetuses are often associated with developmental delays, poor growth, and a high risk for birth defects.