At what gestational age is a fetus considered viable?

A fetus is generally considered viable at around 24 weeks of gestation, which is largely supported by advancements in neonatal care and the capacity for survival outside the womb at this stage. At 24 weeks, the fetus has developed enough to have a significant chance of survival if born, although it may still face many challenges and complications. This gestational age marks the point at which the lungs and other vital systems are sufficiently developed to potentially function independently, given adequate medical intervention.

The determination of viability is not an absolute and can vary depending on numerous factors such as the availability of medical technology, the health of the mother and fetus, and particular circumstances surrounding the birth. However, 24 weeks is widely recognized as the threshold for viability in medical practice and literature, setting it apart as a crucial marker in maternal and fetal health discussions.