Background: Stomach ulcer disease (SUD) is common in most parts of the world, where ulcers are caused by inflammation of the stomach lining. SUD affects more than 10% of the world's population. It is one of the most common digestive problems. SUD may occur as a result of endothelial damage when there is an imbalance between defensive factors (gastric mucosal barrier, bicarbonate secretion, and elevated blood flow). Aggressive infectious agents (acid, pepsin, H. pylori, and refluxing bile salts).Testosterone neutralizes stomach acidity, and testosterone has been shown to have a role in protecting stomach ulcers, as testosterone stimulates gastric PGs that suppress stomach acidity. Progesterone thickens gastric mucus and prevents mucosal ulceration. Progesterone also acts as an antioxidant to remove free radicals, by promoting gastric mucosal formation, reducing acidic mucosal secretion, inhibiting pepsinogen production, and reducing lesions. SUD are relatively rare during pregnancy, and estrogen exhibits a protective effect against the incidence and severity of SUD, and the risk of ulcers is lower in women compared with men.Methods: We enrolled 60 patients divided into thirty males and thirty females with SUD and 60 healthy controls divided into thirty males and thirty females individuals who did not have the disease and had no history of smoking or drinking alcohol. We measure serum (Testosterone, Progesterone, and Estrogen).Results: Serum (Testosterone, Progesterone, and Estrogen) levels were significantly decreased in SUD patients compared to controls.