Microneedling is generally considered safe when performed by a skilled professional, but it can cause several side effects, both common and rare[1][3][5].
Common side effects include:
- Redness and swelling immediately after treatment, usually subsiding within a few days[1][2][3][5][6].
- Itching, dryness, or skin flaking in the treated area[1][2][3][5].
- Mild discomfort, irritation, or tenderness[2][5][7].
- Increased sensitivity to sunlight and a higher risk of sunburn, so sunscreen is advised post-treatment[1][3].
- Temporary pinpoint bleeding or mild bruising, especially with deeper or more aggressive treatments[2][5][6].
Less common or more severe side effects may include:
- Infection at the treatment site if proper sterilization is not followed[1][2][5].
- Permanent scarring or pockmarks from aggressive needling, improper technique, or underlying skin conditions[1][4].
- Post-inflammatory hyperpigmentation (PIH)—darkening of the skin, which is more common in those with darker skin types and after excessive trauma[1][4][6].
- Granulomatous dermatitis and persistent inflammation, which are very rare but can cause chronic redness, tissue distortion, or even granulomatous skin reactions (inflammatory nodules)[4].
- Nerve damage leading to numbness, dysesthesia (altered sensation), or pain, mostly reported in rare cases[2][6].
- Track marks, enlarged pores, and pigment changes, especially after incorrectly performed procedures[4][6].
Certain groups should avoid microneedling or proceed only under medical supervision, including:
- People with active inflammatory acne, oral herpes, eczema, or psoriasis[2][3][5].
- Individuals with open wounds, active skin infections, or a history of abnormal scarring[2][5].
- Those who have had recent radiation therapy[2][5].
- Pregnant individuals (requires physician clearance)[2][5].
To minimize risks, ensure microneedling is performed by a trained professional, follow all pre- and post-care instructions, and use proper hygiene and sterile equipment[1][4][6].
References
- [1] Microneedling: Benefits And Side Effects – RFSA Dermatology
- [2] Microneedling Side Effects: A Complete Guide – BHSkin Dermatology
- [3] Microneedling > Fact Sheets > Yale Medicine
- [4] Microneedling Beware, This Is How It Can Damage Your Skin In 2025
- [5] Microneedling: Benefits, Side Effects, Cost, Results – Healthline
- [6] A Systematic Review Examining the Potential Adverse Effects of …
- [7] Microneedling: Benefits, side effects, and risks – Medical News Today
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