👉 Hemihydrosis is a condition in which one's blood vessels are too narrow to allow for proper oxygen delivery. This can result from several factors, such as genetics or certain medical conditions. Hemihydrosis can cause symptoms such as difficulty breathing and shortness of breath, as well as changes in the way your body uses oxygen. It is usually diagnosed through a physical examination that includes measuring blood pressure, heart rate, and respiratory function. Treatment options for hemihydrosis may include medication