In short. What a candidacy assessment covers before laser or injectable treatment: skin type, medical history, medications, timing, and the honest reasons treatment is deferred.
Key points
- Being told “not now” — until a tan fades, acne settles, a medication course ends, or a scar matures — is the assessment working as intended.
- A provider who never defers anyone is not being kind; they are transferring risk to you.
- The candidacy conversation should end with a clear statement of what was checked and why the plan is safe to proceed, or what must change first.
Most complications in laser and injectable aesthetics are not bad luck; they are predictable consequences of treating the wrong person, at the wrong time, with the wrong settings. Candidacy assessment is the consultation’s core job: deciding whether treatment should happen at all, and if so, under what conditions. This article explains what that assessment covers.
Skin type and recent exposure
For energy-based treatment, skin type is the first safety variable. Darker skin and recently tanned skin absorb more light in the epidermis, raising the risk of burns and post-inflammatory pigmentation; some treatments are deferred until a tan fades. A history of abnormal scarring or pigment problems shifts the plan toward conservative settings and test areas.
Medical history and medications
Assessment reviews healing disorders, diabetes control, immune status, bleeding tendency, and previous reactions to treatment. Medications matter: blood thinners raise bruising risk with injections; photosensitizing drugs raise burn risk with light-based devices; recent isotretinoin traditionally delays resurfacing. Pregnancy and breastfeeding are standard reasons to defer elective treatment, and active infection or inflammation in the treatment area pauses everything.
Deferral is a clinical decision, not a rejection
Being told “not now” — until a tan fades, acne settles, a medication course ends, or a scar matures — is the assessment working as intended. A provider who never defers anyone is not being kind; they are transferring risk to you. The candidacy conversation should end with a clear statement of what was checked and why the plan is safe to proceed, or what must change first.
Expectations are part of candidacy
Suitability is psychological as well as physical. Expecting a permanent result from a temporary treatment, perfection from a percentage improvement, or a life change from a syringe predicts disappointment regardless of technical success. Part of assessment is an honest conversation about what the treatment can deliver, and the maturity to hear it.
Documentation and consent
Baseline photographs, a written plan with staged sessions and review points, and informed consent that names real risks — burns, pigmentation, vascular occlusion, bruising — are the paperwork of safe practice. They also protect the patient: a documented baseline makes every later judgement of “better” or “worse” honest.
Disclose before treatment if
- You are pregnant, breastfeeding, trying to conceive, or taking any regular medication including blood thinners.
- You have a history of keloid or abnormal scarring, pigment disorders, or cold sores near the treatment area.
- You have had previous filler, threads, or surgery in the area — bring details, however vague.
Frequently asked questions
What does a candidacy assessment actually check?
Skin type and recent sun exposure, healing and scarring history, medical conditions such as diabetes or altered immune status, bleeding tendency, all current medication including blood thinners and photosensitizing drugs, previous treatments and reactions, and what the patient expects the result to be.
Is being told to wait a rejection?
No. Being deferred until a tan fades, acne settles, a medication course ends or a scar matures is the assessment working as intended. A provider who never defers anyone is not being kind; they are transferring risk to the patient.
Can a physically suitable patient still be a poor candidate?
Yes. Suitability is psychological as well as physical. Expecting a permanent result from a temporary treatment, or perfection from a percentage improvement, predicts disappointment regardless of technical success, so expectations are discussed as part of the assessment rather than afterwards.
Risks & Limitations
- Vascular occlusion — a time-critical emergency in which filler blocks a blood vessel. It can cause skin loss and, rarely, blindness.
- Nodules, lumps or granuloma formation, which may need treatment or dissolution.
- Infection at the injection site.
- Asymmetry or over-correction; over-treatment is harder to correct than under-treatment.
- Migration of filler away from the intended area.
- Temporary brow or eyelid droop after botulinum toxin, which resolves as the effect wears off.
- Bruising and swelling. All injectable results are temporary and maintenance is required.
When to Seek Care
- Severe pain out of proportion to the procedure, or skin turning white, grey, mottled or dusky — this is a vascular emergency; seek care immediately.
- Any change in vision — seek emergency care immediately.
- Fever, spreading redness, warmth or pus at an injection site.
- A hard, painful lump that is growing.
- Drooping eyelid, difficulty swallowing, or difficulty breathing after botulinum toxin.
References & Further Reading
- American Academy of Dermatology (AAD) — injectable safety information
- American Society of Plastic Surgeons (ASPS) — injectable guidance
- U.S. Food and Drug Administration (FDA) — approved filler and neurotoxin products
- National Medical Products Administration (NMPA, China) — approved product status
This page is patient education, not medical advice, and it does not cite individual studies. Discuss your own case with a qualified clinician. To arrange an assessment at Chongqing West District Hospital, see Contact & Consultation.