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Glossary term

Femur

The thigh bone; the longest and strongest bone in the human body, extending from the hip to the knee.

Updated 2026-03-012 aliases3 sourcesUsed across articles and safety pages

Definition

The longest and strongest bone in the human body, located in the upper leg and extending from the hip joint to the knee joint. In limb lengthening, the femur is one of the two primary bones targeted for height increase.

Aliases

thigh bone, femoral bone

Updated 2026-03-01

Sources

Informational only. Not medical advice.

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