What is a common complication that can occur during venipuncture?

Bruising at the site of venipuncture is a common complication due to the nature of the procedure, which involves penetrating the skin and the underlying blood vessels. During venipuncture, the needle can cause small tears in the blood vessel walls, leading to blood leaking into the surrounding tissues. This leakage results in bruising, which is typically characterized by discoloration and tenderness at the puncture site. It is relatively common and often resolves on its own without any significant long-term effects.

While other complications, such as infection at the site, allergic reactions to antiseptics, and vein collapse can occur, they are less frequent compared to bruising. Infection usually requires multiple factors, such as poor technique or compromised skin integrity. Allergic reactions to antiseptics would depend on an individual's specific sensitivities. Vein collapse, while a concern, is often preventable with proper technique and occurs under specific circumstances, such as repeated puncture attempts or unapproachable veins. Overall, bruising is a straightforward and frequently observed outcome after venipuncture.