This is about my uncle who was previously diagnosed with the same problem some 4 to 5 years ago when suddenly his haemoglobin level reduced to 9. Doctors did all sort of tests and also his bone marrow was tested but nothing was found unusual. Now recently same problem have occurred . His haemoglobin have reduced to 6 or 7 and suddenly he lost huge weight. Previously he was of 90kgs and within 3 to 4 months he lost weight and now he is of 75kgs . He is frequent smoker and also he used to have panmasala. Now he is suffering from mouth ulcer , constipation and sleep disorders. What can be done in such situation?