Analysis of the problem: after the operation of femoral head necrosis, we should first pay attention to fasting spicy food, quitting smoking and drinking, and eating less "three high" foods and foods that are too acidic and alkaline; Secondly, we should pay attention to supplement foods with high calcium content, such as dairy products, bean products, eggs, fish and shrimp, and eat more fruits and vegetables.

Suggestion: Two cups of milk a day is a good choice, and you can drink more animal bone soup.