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The puncture site of the indwelling needle has turned into a scar.

Sep 21, 2023 Source: Cainiu Health
Dr. Liu Qingyun
Introduction
In general, the development of a scar at the site of an indwelling needle may be related to factors such as improper wound care, poor drug absorption, scar hyperplasia, blood vessel rupture, or phlebitis. Patients are advised to follow medical instructions for symptomatic treatment. If proper wound care is not maintained after injection—for example, if the area is exposed to strongly irritating skincare products—local inflammatory infection may occur, which can easily lead to hyperplasia and result in scarring at the needle site.

Under normal circumstances, the puncture site of an indwelling needle turning into a scar may be related to improper wound care, inadequate drug absorption, scar hyperplasia, blood vessel rupture, or phlebitis. Patients are advised to follow medical instructions for symptomatic treatment. Specific analyses are as follows:

1. Improper Wound Care

If the patient fails to properly care for the injection site after receiving the injection—such as by exposing it to soapy water or strongly irritating skincare products—it may lead to local inflammatory infection. This can easily cause local tissue hyperplasia, resulting in the indwelling needle puncture site turning into a scar. Patients may use medications such as erythromycin ointment or mupirocin ointment as directed by a physician to improve the condition.

2. Inadequate Drug Absorption

If during intravenous infusion the indwelling needle is not properly secured, the needle tip may dislodge from the blood vessel during movement, causing the medication to fail to be absorbed promptly. This may result in the indwelling needle puncture site turning into a scar. It is recommended to stop the infusion immediately and consider inserting the indwelling needle at another site.

3. Scar Hyperplasia

If the patient has a predisposition to scarring (scar-prone constitution) and the indwelling needle remains in place for an extended period without timely replacement, excessive proliferation of skin fibrous connective tissue may occur. This can lead to raised skin lesions, often accompanied by capillary dilation, potentially causing the indwelling needle puncture site to turn into a scar. It is recommended to use medications such as asiaticoside cream or imiquimod cream under a doctor’s guidance.

4. Blood Vessel Rupture

If during infusion the indwelling needle accidentally punctures the blood vessel, causing blood to leak out through the puncture site, a hematoma may form beneath the local skin, which could lead to the indwelling needle puncture site turning into a scar. It is recommended to stop the infusion immediately and apply firm pressure locally to prevent worsening bleeding. If necessary, medications such as Zhibao capsules or Compound Danshen tablets may be used according to medical advice.

5. Phlebitis

During infusion, factors such as the needle tip or infused fluid may irritate the vascular endothelial cells. Under inflammatory stimulation, the site of the indwelling needle may develop symptoms such as pain and swelling, leading to the aforementioned issues. Patients are advised to perform local massage and may use medications such as cefixime granules or roxithromycin capsules under medical supervision to alleviate symptoms.

If patients experience any discomfort, they should seek prompt medical attention at a hospital to avoid delays in diagnosis and treatment.

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