What causes a mild pain in the vein after blood drawing?
Apr 08, 2023
Source: Cainiu Health
Dr. Zhang Jianbin
Introduction
A dull pain in the vein after blood draw may be caused by tissue damage, puncture of the blood vessel wall by the needle, or sensitive constitution. During the blood draw, if the needle insertion site is improper or the depth of insertion is incorrect, it may lead to surrounding tissue injury or bruising. This can cause localized pain, swelling, or a burning sensation.
After blood collection, a mild pain in the vein may occur due to tissue damage, needle puncture of the blood vessel wall, sensitive constitution, or other reasons. Details are as follows:
1. Tissue Damage
During blood collection, if the needle insertion site is inappropriate or the depth of insertion is incorrect, it may cause surrounding tissue damage or bruising. This can lead to localized pain, swelling, or a burning sensation.
2. Needle Puncture of the Vessel Wall
During blood collection, healthcare professionals use a needle to puncture the vein for blood sampling. This puncture may cause minor injury to the venous wall, resulting in slight pain or discomfort around the vein.
3. Sensitive Constitution
Different individuals have varying tolerance levels toward the blood draw procedure. Some people may be more sensitive to vein puncture or blood collection, and thus may experience mild pain or discomfort afterward.
In addition, mild pain could also result from venous dilation or spasm. If the pain progressively worsens or is accompanied by symptoms such as swelling, redness, or fever, prompt medical attention is recommended. During blood collection, you may communicate any discomfort to healthcare staff to ensure proper technique and minimize adverse sensations. Note: treatment should be sought at a qualified medical institution, and medication must be taken only under the guidance of a licensed physician.
