1. In activities such as going down stairs or climbing mountains, the greater trochanter at the hip joint will be damaged when you suddenly step on the air, or when the torsional force such as running and dancing is too large;
2. If you keep a certain posture for a long time, the femoral head (that is, the joint between thigh and hip joint) will produce more effusion and chronic strain;
3, long-term drinkers, there will be femoral head injury.
It seems that you may have been sedentary.