Medical Definition of Poor circulation

Poor circulation: An inadequacy of blood flow. Inadequate blood flow to a particular area of the body can result in too little oxygen being delivered to that area, a condition known as hypoxia. The term poor circulation may be used to refer to peripheral vascular disease (or peripheral arterial disease), a condition that develops when the arteries that supply blood to the internal organs, arms, and legs become completely or partially blocked as a result of atherosclerosis.

Source: MedTerms™ Medical Dictionary
http://www.medicinenet.com/script/main/art.asp?articlekey=97614
Last Editorial Review: 5/13/2016