Hip joint hospital??

My hips felt stiff while doing squats, so I took a break, but...
It still feels stiff, and if I sit for a long time, my legs go numb.
I'm planning to visit a hospital. Which hospital would be good to go to?
There are departments such as Orthopedic Surgery, Pain Surgery, Neurosurgery, and Rehabilitation Medicine.
Please recommend where I should start!
I'm a company employee, so I can't spend much time going to the hospitalㅠ

Source:Here is the translation: "Thinking here"