Hello, Welcome to Healthcaremagic, From your query i understood that you are suffering from Chronic diarrhoea. There are plenty of causes for chronic diarrhoea. Every chronic diarrhoea patient must need complete medical evaluation. Because it may lead to debilitating condition. Here i Highlight few important causes which you have to rule out first. 1. Chronic infection -eg. amoebiasis, giardia, entamoeba etc.. To rule out infections you have to do stool culture and stool examination for ova and cyst. 2. Some drugs like digoxin, metformin, magnesium containing antacids also cause chronic diarrhoea. 3. Some other colon diseases ( irritable bowel syndrome, crohn s colitis, ulcerative colitis ) which require further investigation like colonoscopy to evaluate morphology and pathology of large intestine. 4. Rule out any immuno deficiency disease like fungal infection or HIV. As it is already one month of diarrhoea, better investigate immediately. Hope this helps. Take care.