Femoral neck angle

Commonly the femoral neck angle is the most known individual difference. A femoral neck angle is usually classified into 3 categories: coxa valga (a more vertical angle inserting into the pelvis), coxa vara (a more horizontal angle inserting into the pelvis) and what is considered a more “normal” angle of roughly 40-50 degrees. The funny thing is the normal angle occurs with less frequency than the combined angles of coxa vara and valga, meaning it’s somewhat more rare to see.

Reference:

https://bretcontreras.com/no-two-hips-are-the-same-how-anatomical-variance-can-affect-your-range-of-motion/