Open sores on the lining of the stomach or other mucus membranes. Transplant surgery may not be done if the patient has ulcers because a large number of ulcers bleed and this could be dangerous. Sometimes ulcers can be treated well enough so that the patient can still go through with transplant surgery.
Open sores, a break in the skin
Your amino acids are all sulfur bonders, without the sulfur they are not complete. When they build a gland, the gland puts out hormones and enzymes that work as thermostats for chemical production in your body. Without the sulfur the glands do not work right and they produce too much stomach acids then you get ulcers.