The moisture from water left in the ear after swimming or bathing can lead to this infection in the outer ear canal.
Disease
Tennis elbow
Repeated motion of the wrist and arm often cause this condition. It affects athletes and nonathletes. Learn how to prevent and treat it.
Disease
Zollinger-Ellison syndrome
In this rare disease, tumors in the digestive tract cause excess production of a certain hormone. High levels of this hormone increase stomach acid, leading to peptic ulcers.