Earlier blood test was hb content is decreasing every month almost as earlier it was 9mg then it reaches to 7 mg and now its 6.30 mg hb content is decreasing regularly all other reports are normal iron injections is given continously and treatment is going on but still.hb is reducing what can be other reasons of this and plzz tell that what test can be done now...it is ask for patient of 53 yrs age male