AVN, or Avascular Necrosis, is a medical condition that affects the hip joint. It is also known as osteonecrosis or bone infarction. This condition occurs when there is a temporary or permanent loss of blood supply to the bone tissue in the hip joint, leading to bone cell death. This can cause the affected bone to collapse and may result in joint pain, limited mobility, and ultimately, arthritis.AVN of the hip can have various causes, including trauma, long-term use of high-dose corticosteroids, excessive alcohol consumption, and certain medical conditions. Treatments for AVN of the hip typically aim to relieve pain and improve joint function. They can range from conservative measures like rest and physical therapy to more invasive options like core decompression or joint replacement surgery, depending on the severity of the condition. Early diagnosis and intervention are crucial in managing AVN of the hip and preventing long-term joint damage.