Irritable bowel syndrome (IBS) and lactose intolerance can seem similar. The symptoms they cause are nearly identical. But there are distinct differences in why they happen and how you handle them.
If you have lactose intolerance, it’s because your body doesn’t digest one specific type of food: the sugar in milk. If you have IBS, on the other hand, many things can be behind your symptoms. You can have both conditions at the same time, but they are two separate problems.