Microneedling Requests: Anticoagulation, Active Cysts, and Keloids
A 52-year-old man books a microneedling series for depressed acne scars on both cheeks. His intake form lists warfarin for atrial fibrillation, and he mentions he bruises "if you look at me wrong." On exam he has several active, tender cystic lesions along the jawline, and he shows you two raised, firm scars on his chest from old acne that he says "grew after they healed." He wants maximum depth on the first visit and asks whether he can bring his own cartridge back next time so he does not have to pay for a new one each session. He also wants to know if you can do the whole face and neck today in one sitting.
1. Rank the contraindications and concerns in this client, and state what you will and will not do today.
Read the worked answer
Do not microneedle today. Several issues are absolute or near-absolute until cleared.
Priority order and reasoning:
- Warfarin: needle trauma causes punctate bleeding; anticoagulation raises bleeding, bruising, and hematoma risk, and healing may be impaired. This requires physician clearance before any needling -- not a judgment the esthetician makes alone.
- Active cystic acne on the treatment area: needling over active, deep inflammation risks spreading infection, worsening lesions, and seeding infection along channels. Defer until the acne is controlled.
- Keloid history: a client who forms keloids is at elevated risk of abnormal scarring from dermal trauma. Avoid deep needling; even superficial treatment requires careful test-area planning and informed consent. Do not treat the keloid scars themselves.
- "Maximum depth" on a first visit: no one should start at maximum depth on a first treatment, especially with this risk profile. Settings are built up based on response.
- Full face and neck in one sitting: reasonable for a low-risk client, but not for someone with this risk profile on a first treatment -- limit the area so a reaction is manageable.
Decision: no treatment today; complete assessment, gather physician clearance, and set up a staged plan.
2. He asks to reuse his cartridge to save money. What is the answer and the reasoning?
Read the worked answer
No. Cartridges are single-use, single-client devices and cannot be reprocessed.
Reasoning:
- Needles blunt after use, so a reused cartridge delivers uneven depth, more trauma, more pain, and unpredictable results.
- Residual biological material cannot be reliably removed from the needle hub, and the device cannot be sterilized in a salon; this is a bloodborne-pathogen exposure risk for the next client and for you.
- Reuse also invalidates the manufacturer's instructions for use and exposes you and the business to liability.
- After use, dispose of the cartridge in a sharps container, never in regular trash, and document the sharps handling if your written exposure control plan requires it.
- Offer cost-management options that are safe: spacing sessions, treating a smaller area per visit, or a phased plan -- never reusing consumables.
This is also a chance to reinforce that price should not drive an infection-control decision.
3. Build the plan you would present to him, including the sequence and the referral.
Read the worked answer
A staged, clearance-first plan.
- Refer and coordinate: send him to his prescribing physician/cardiologist for clearance regarding warfarin and microneedling, and to a dermatologist for the cystic acne and the chest keloids. Ask what acne regimen is planned -- if isotretinoin is started, resurfacing waits until at least 6 months after the last dose with clearance.
- Control the acne first: topical/oral therapy from the provider; no needling over active lesions or an inflamed jawline.
- Keloid risk plan: decide on a small test area and avoid deep settings; consent specifically covers abnormal scarring risk; avoid the chest scars entirely.
- When cleared: start superficial, single-pass, limited area (for example one cheek), conservative depth, with lidocaine and post-care instructions; assess at 4-6 weeks before increasing.
- Alternative interim care: gentle superficial peels or facials are still options for texture, chosen with the same caution about his medications.
- Documentation: medical history, medications, exam findings, the reasons for deferral, the referrals, and his acknowledgment. Record the specific device, cartridge lot, depth, and area for every session.