Hi Welcome to Health Care Magic......
Increased bleed from uterus
, is a common complication of hypothyroidism
in mensturating females. If menorrhagis is very severe and not controlled by conservative methods - means if not able to control with drugs then yes removal of uterus - Hysterectomy
is a indication. Your possible course of action should be 1) Get her hypothyroidism treated with L-thyroxine
tabs(under doctors consultation) 2) Try manage uterine bleed by drugs under consultation by a gynaecologist - harmonal drugs can be used and with repeated blood transfusions. 3) If drugs cant work and she is bleeding uncontrollably then i think you need to opt for hysterectomy as a last rwesort after clearly understanding its side effects from the operating surgeon.