People with inflammatory bowel illness have immune proteins called anti-Saccharomyces Cerevisiae antibodies (IBD). IBD is a collective term for a number of chronic diseases like Crohns disease and ulcerative colitis. When symptoms like gastrointestinal cramps diarrhoea weight loss exhaustion symptoms relating to the joints or organs and delayed growth in children are noticed the Anti-Saccharomyces Cerevisiae (ASCA) IgG test is requested. IBD symptoms change over time and vary from person to person. The ASCA IgG test aids in separating ulcerative colitis from Crohns disease. The colon is where both illnesses are located. Additionally the ASCA IgG test is recommended because it is challenging to accurately detect these disorders using biopsies.