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Embryology Term

Lanugo

Last updated: June 2026

Definition

Fine, soft hair that covers the fetus's body inside the womb to keep it warm and hold the vernix protective coating in place.

Clinical Context

In obstetrics and maternal healthcare, terms like Lanugo represent key anatomical, physiological, or developmental parameters monitored during gestation, labor, and the postpartum stages. Understanding these terms empowers parents to converse with doctors, interpret ultrasound reports, and track fetal progress.

Medical Notice: This term definition is for educational and planning purposes only. It is not medical advice. If you have any clinical questions or concerns about lanugo in your own pregnancy, consult your obstetrician or health team immediately.

Term FAQs

What is the definition of Lanugo?

In pregnancy and obstetrics, Lanugo is defined as: Fine, soft hair that covers the fetus's body inside the womb to keep it warm and hold the vernix protective coating in place.

What category does the term Lanugo belong to?

The term Lanugo belongs to the Embryology category of pregnancy and neonatal health terminology.

Why is understanding Lanugo important?

Understanding Lanugo helps expectant mothers and partners make sense of medical reports, doctor consultations, and gestational developments.

Related Terms

Blastocyst

A hollow ball of cells formed about 5 days after fertilization, which is the stage of embryonic development that implants into the uterine wall.

Embryo

The developing offspring from the second to the eighth week after fertilization, after which it is called a fetus.

Fetus

The clinical term for the developing baby from the ninth week after fertilization until birth.
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