What is lax ge junction hills grade 2 ?what does it means???my daughter is 17 year old?

Same as before. Ask as often as you want. Not serious. The entrance to the stomach is a fold in tissue with some purse string closure muscles, not a door or valve. A lax GE junction just means it is loose and backwash of stomach acid is likely a common occurrence. This is often accompanied by pain, localized to mid chest. It is quite common and treated with change in behaviors/diet & meds.