Hi,
Welcome to Healthcaremagic.com.
I had gone through your question I can understand your concern about your husband.
There are three possibilities of blood in mouth;
1) Blood from the stomach, he must be feeling
vomiting if it comes from stomach also there will be black stools (Terry black)
2).Pulmonary blood, if it is associated with
cough that had you denied earlier.
3) Blood oozing out from gums. Some times we miss the basic cause which is not too much important.
These are main three causes, you can visit to the concerned specialists to get proper treatment.
Hope my answer will help you and visit us back in case you need any further help.
Regards
Dr Muzaffer Hussain Parray.