The child is 6 years old, and his leg suddenly hurts when he sleeps. His legs can't be straight, they can only bend without trauma. What's going on here?

Solution: Cover your feet with a thin towel when you sleep, don't be greedy for cold, and don't turn on the air conditioner for too long. Bones are prone to cramps when they catch cold.

In addition, the cause of cramp is calcium deficiency. Advise your children not to be picky about food for the sake of balanced nutrition. Don't deliberately stew soup, it's unnecessary, just a basic meal. Besides, he is no longer always allowed to stay at home and play games. When he has time, he can bask in the sun. Vitamin E in sunlight can promote the absorption of calcium. Don't avoid the sun just because it is hot. Sunshine is our treasure.