Vascular problems can be classified into either traumatic, compressive, occlusive, tumors/malformations and vasospastic (spasm of the artery, which reduces its diameter and thus its blood flow).
Vascular problems may occur in individuals with diabetes
, hypertension, or kidney failure
, or in dialysis
patients. Occupational exposure (vibrating tools, cold) and smoking
can be a factor too. See an md.