Differential diagnoses for an irritable hip include:
Septic Arthritis
Septic arthritis is an infection of the hip joint that can cause pain and inflammation. It is typically caused by bacteria, such as Staphylococcus aureus. Symptoms may include fever, pain when moving the hip joint, and redness and warmth in the affected area. Treatment typically involves antibiotics and draining the joint of any accumulated fluid.
Tendinitis
Tendinitis is an inflammation of the tendons that connect the muscles of the hip to the bone. It can occur as a result of overuse, repetitive motions, or an injury. Symptoms may include pain when moving the hip joint, tenderness, and swelling. Treatment typically involves rest, physical therapy, and medications such as nonsteroidal anti-inflammatory drugs (NSAIDs).
Fracture
A fracture is a break in a bone, and it can occur in the bones of the hip. Symptoms may include pain, tenderness, and swelling. Treatment typically involves immobilizing the hip with a cast or brace and medications such as NSAIDs. Surgery may be necessary in more severe cases.
Bursitis
Bursitis is an inflammation of the bursae, which are the fluid-filled sacs that cushion the hip joint. It can be caused by overuse, injury, or infection. Symptoms may include pain when moving the hip joint, tenderness, and swelling. Treatment typically involves rest, physical therapy, and medications such as NSAIDs.