Necrosis of the femoral head may hurt if you sit for a long time. Necrosis of the femoral head, also known as ischemic necrosis of the femoral head, may be caused by ischemia of the femoral head due to ethanol intoxication and infection. Sitting can increase the pressure in the femoral head and joint capsule. Prolonged sitting can stimulate the nerve receptors around the joint capsule, resulting in hip pain. Necrosis of the femoral head can be treated with decompression therapy using core decompression, which can relieve the patient’s pain. Low molecular heparin, prostaglandin, warfarin and other drugs can also be used to reduce symptoms and control the development of the disease as prescribed by the doctor. Patients should not sit on too short a stool, avoid sitting cross-legged and sedentary during the period of unfinished rehabilitation exercise. If there is any abnormality in patients with femoral head necrosis, it is recommended to go to the hospital in time and follow the doctor’s instructions for treatment.