Why can’t I squat down when I put my legs together? ^_^ Depressed, it seems to be related to sports performance

You may have gluteal muscle contracture. Can't you cross your legs? My calves are tired after standing or walking for a long time. It may be because I had a lot of muscle injections when I was a child. Surgery is required, but there is not much harm in not having surgery. I just can't squat, and I'm a bit out of shape when walking and running. Not pretty. But surgery is best.

Mainly because before the 1990s, benzyl alcohol was used as the solvent for intramuscular injection. Very few children today have this disease.