Muscle pain in the thigh and hip area has a variety of causes, common ones being inflamed tendons, arthritis, trochanteric bursitis, hip fractures, and osteonecrosis, notes Healthline. Others causes are spinal stenosis, rickets, bone cancer and leukemia, according to Mayo Clinic.
Tendons are the cords that join muscles to the bones. When they become inflamed, they can cause tenderness and pain, making it difficult to move. Common causes of tendinitis include an injury, aging and overuse of the tendon due to repetitive movements, says Healthline.
Rheumatoid arthritis and osteoarthritis are the two primary forms of arthritis that cause this pain. The pain may occur due to immune reactions in the area, an infection or chronic breakdown of cartilage. Trochanteric bursitis occurs due to inflammation of the bursa over the hip joints by conditions such as posture problems and overusing the joints, notes Healthline.
Sometimes the blood does not reach the bones in adequate amounts, leading to muscle pain and loss of bone tissue, a condition called osteonecrosis. Osteonecrosis can cause hip fractures, conditions characterized by severe hip and thigh muscle pains with possible complications such as blood clotting. It may occur due to a previous cancer treatment and heavy use of alcohol and steroid medications, according to Healthline.
Cancer of the bodys blood-forming tissues known as leukemia is also a common cause of this muscle pain, as well as weakening and softening of bones as in the case of rickets, states Mayo Clinic.