Hey doctor, Around 2 months back, my father age 60 years, has develop respiratory problem while climbing stairs which was followed by bad knee joint pain. CBC test concluded Low Hb (5.3) in blood. At that point he was given 4 units of blood, but the problem looks more serious when he was admitted again with same reason just 4 days after his previous discharge. This time again blood was transfused, since Hb was also low (7) . Till this point of time my father was admitted 6 times in hospital & 11 units blood has been transfused. Several test has been conducted including Bone marrow aspiration & biopsy , multiple myeloma, montaux test, endoscopy, video colonoscopy, stool test, urine test, cect chest etc. But the doctors are unable to find out reason for blood loss. However with bone marrow aspiration & biopsy they have concluded that blood is forming in marrow & patient is not suffering from cancer, report of montaux test , stool test , urine test is also negetive. However video clonoscopy shows ulcers in abdomen region. At times my father is having fever also, doctors are giving Crocin for that. Presently my father is in hospital & is given treatment for ulcers (doctors are also giving small amount of steroids), but despite of this Hb of my father is continously declining. Please advice Thanks in advance Shobit