<s>[INST] my husbands most recent blood work came back showing iron anemia and abnormal rbcs. hes been receiving iron injections for several months with no change in either number. should we be concerned with cancer (no indication in labs) or is there possibly another cause? [/INST] Welcome to Chat Doctor. I am Chat Doctor.  My dear friend, if your husband is not responding for treatment then we need to find out the cause of anemia. You need to do some important test as complete blood count, peripheral blood film, reticulocyte count and stool examination for occult blood. These test will remove your any doubts regarding cancer and will help us for further management. He will be fine soon. Keep in touch. Thanx for query. </s>