Tendonitis and Tendinosis of the Hip has multiple names such as trochanteric bursitis and hip flexor tendonitis. Tendonitis is a painful burning sensation caused by the inflammation or irritation of the tendon on the hip. A tendon is a thick fiber that connects the muscles to bone. When tendons become inflamed, patients may experience pain, tenderness, a burning sensation, and possible swelling near the affected area. The iliopsoas muscle is responsible for helping the hips bend forward by attaching to the upper thigh by a tendon. When the muscle becomes overused, the tendon can become inflamed or irritated causing hip tendonitis.
Tendonitis and Tendinosis of the Hip is quite common in runners, bicyclists, and swimmers. Symptoms may include gradual frontal hip pain at the site of the tendon attachment, burning sensations, decreased hip mobility and strength, difficulty standing upright after sitting for long periods of time, difficulty putting on your shoes and socks, difficulty walking quickly, and frontal knee pain related to a tight iliopsoas muscle. If you experience any of these symptoms, please consult with your primary physician or general practitioner for a physical assessment to determine the cause of hip pain. Diagnostic tests may include an X-ray to assess bone structure, a magnetic resonance imaging to assess possible soft tissue damage (ligaments and tendons), and a possible bone scan to assess for bone diseases (ex: cancer, fractures, osteomyelitis, avascular necrosis, etc.). Surgery is rarely required for hip tendonitis. The best treatment plan involves rest, icing, compressing, elevating the affected hip, taking NSAIDs (ibuprofen) for inflammation, and physical therapy for stretching and massaging the muscles and tendons. Unfortunately, if tendinitis continues without any form of treatment, tendinosis will be the aftereffect. Tendinosis is the degeneration of the tendon’s collagen in response to chronic overuse.

References
Bass E. (2012). Tendinopathy: why the difference between tendinitis and tendinosis matters. International journal of therapeutic massage & bodywork, 5(1), 14–17.
https://doi.org/10.3822/ijtmb.v5i1.153
Beaumont. (2020). Hip Tendonitis. https://www.beaumont.org/conditions/hip-tendonitis
Garry, J.P. (2019). Iliopsoas Tendinitis. https://emedicine.medscape.com/article/90993-overview
Rumruay. (2020). Hip (Trochanteric) Bursitis. [Illustration].
https://www.shutterstock.com/image-vector/hip-pain-knee-heel-cuff-bone-1866303562.