The FOB rapid test is a quick and easy way to detect hidden blood in stool samples, which can help detect bleeding caused by a variety of digestive problems, such as diverticulitis, colitis, polyps and colorectal cancer. It is particularly useful for routine check-ups, monitoring ongoing bleeding and screening for colorectal cancer. Unlike older tests, this one does not require a special diet beforehand, making it more convenient. It is intended for use by healthcare professionals.