Tendonitis
Tendonitis [7] refers to the inflammation of the tendons of the muscles of the hip joints. This disorder usually leads to pain in the joint that gets worse with exercise, such as runny or walking, and sometimes even radiate to the leg. Tendonitis pain is very common in people who make use of the tendon in their hip joint often (such as athletes. Therefore, it is common for them to feel pain after a session of physical exercise, for example. To ease the pain of tendinitis, place a warm compress on your hip for about 20 minutes, and do this at least 2 times a day. After 3 days apply an anti-inflammatory topical drug such as Traumeel and Cataflam. If the pain in the hip is very intense, occurs abruptly, makes movements like walking and sitting difficult or takes longer than 1 month to disappear, it is best to go to the doctor or see an orthopedist.
References:
[1] https://www.webmd.com/osteoarthritis/default.htm
[2] https://www.webmd.com/osteoarthritis/hip-osteoarthritis-degenerative-arthritis-hip
[3] https://www.rush.edu/conditions/bursitis
[4] https://www.webmd.com/osteoporosis/what-happens-when-you-have-a-hip-fracture
[5] https://www.mayoclinic.org/diseases-conditions/avascular-necrosis/symptoms-causes/syc-20369859
[6] https://orthoinfo.aaos.org/en/diseases–conditions/femoroacetabular-impingement/#:~:text=Femoroacetabular%20impingement%20(FAI)%20is%20a,against%20each%20other%20during%20movement.
[7] https://www.rush.edu/news/7-common-causes-hip-pain