👉 Ulcerated is a medical term that refers to an inflammation of the lining of the stomach or intestine. It can be caused by various factors such as trauma, infection, or chronic inflammation. Inflammation occurs when cells in the body start to produce and release chemicals called histamine into the bloodstream. Histamine causes your body's immune system to respond by producing painkillers like opioids, which can cause ulcers to form on the lining of the stomach or intestines. Ulcer