- The clotting of blood under the skin leading to the formation of lumps is one of the most common risks of the venipuncture process.
- This condition is called Haematoma.
- There are chances of bruising and bleeding.
- Some individuals feel lightheaded or dizzy after the sample of the blood has been collected.
- One can also experience pain if too many punctures have been made for finding the vein from where the blood has to be collected.