Self-component.
女 is itself Kangxi radical 38. Oracle-bone forms draw a kneeling person with arms folded forward, a posture used across early East Asian iconography for women. The strong visual signature — the crossed legs of stroke 1 against the curved body of stroke 0 — makes it one of the most reliable component shapes to spot, anchoring
妈,
姐,
好,
妻,
婚 and an enormous female-related family.