My mother was diagnosed with broken hip. how will this affect her?

Surgery likely: Joint used in weight bearing, so broken bones need to be fixed. Healing faster after surgery, lying around for six months or so is very dangerous.

Would seek treatment: Hip fractures generally require treatment as they usually cofine folks to bed and the sequlae of bed rest is not very good. Treating a hip fracture is generally done to keep a person out of bed active and mobile as far as possible.