Do you know how that "__tens of thousands of__ Before-after cases" is being counted?
When you browse aesthetic surgery clinic websites, you often see phrases like "__tens of thousands of__ Before-after cases in track record." It feels natural to feel reassured when the numbers are large.
However,there is no industry-standard criteria for how Before-after cases are countedEven the same "10,000 cases" can mean completely different things depending on the clinic.
In this article, we explain how to read and interpret numbers so that patients are not misled by statistics and can choose a truly trustworthy clinic.
Two ways to count Before-after cases
There are roughly two methods for counting Before-after cases in cosmetic surgery.
Counting method A
1 patient = 1 Before-after case
👤 →
1 case
Nasal tip refinement＋Auricular cartilage transplantation＋Nasal septal extensionat the same timePatient who underwent → 1 Before-after case
Counting method B
Number of procedures per person = Number of Before-after cases
👤 →
3 procedures
Same patient'sNasal tip refinement (1 procedure) ＋ Cartilage transplantation (1 procedure) ＋ Nasal septal extension (1 procedure) → 3 Before-after cases
There is no official standard that says either counting method is "correct". However,With Method B, the number of before-after cases balloons 3–10 times even with the same number of patients.This happens.
Let's do the math—the physical limits of "○ ten-thousand before-after cases"
Let's do some simple arithmetic. Suppose a certain clinic claims "23,500 before-after cases in 5 years since opening."
📊 Reverse-calculation simulation
23,500 before-after cases
Total before-after cases
÷
5 years
Years since opening
=
4,700 before-after cases/year
Annual before-after cases
4,700 before-after cases
Annual before-after cases
÷
250 days
Annual operating days
=
18.8 cases/day
Per day
18.8 cases per day. This isa number that is physically almost impossible when counted using Method A (1 patient = 1 Before-after case).
Why is it impossible
⏱ Time required per surgery (estimate)
Even if operating at the fastest pace of 2 hours per case, 1 day 18.8 patients × 2 hours = 37.6 hours. This exceeds 24 hours.
Even with 5 physicians, at 3.8 cases per person per day × 2 hours = 7.6 hours, the math only works out at full capacity with no breaks.
In other words, the figure of "23,500 cases in 5 years since opening"It is highly likely that it is being calculated using Method B (counted by treatment option).This is what we can understand.
How the counting method changes the appearance
Even with the same clinic's actual results, the impression changes this much depending on the counting method.
Comparison of the same clinic and same number of patients
Method A (1 patient = 1 Before-after case)
Method B (counted by treatment option)
Annual patient visits
800 people
800 people
Average number of treatment options
—
× 3.5 types
Annual "Before-after case" count
800 Before-after cases
2,800 Before-after cases
5-year cumulative total
4,000 Before-after cases
14,000 Before-after cases
Even if the same 800 patients are treated, with Method B,3.5 times the "14,000 Before-after cases"can be announced.
5 indicators to check instead of Before-after case numbers
So, what should you really confirm when choosing a clinic?
1
Individual Before-after case numbers of the attending physician
Rather than the entire clinic, confirm how many years of experience your attending physician has and what treatments they specialize in.
2
"Quality" of progress photos
Are there before and after progress photos taken from the same angle and with the same lighting? It is important not only 1 month after, but also whether long-term progress at 6 months to 1 year is being published.
3
Disclosure of revision surgery rate
Clinics that disclose the proportion of revision surgeries are evidence that they are confident in their results. Check whether "more Before-after cases = more revisions," this is not the case.
4
Consultation time
Consultation time of 15 minutes per person versus 60 minutes per person—which one would help you feel your facial features are better understood? The higher a clinic's turnover rate to increase Before-after case numbers, the shorter the time per person becomes.
5
Academic activities and research publications
Physicians who present at academic conferences or publish peer-reviewed papers are exposing their techniques to third-party evaluation. It is an objective indicator of credibility that cannot be bought with advertising.
If you think "What about my case?"
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Summary—Check the "definition" rather than the "size" of the numbers
✅ Clinic selection checklist
- ☑ Ask about the definition of "Before-after case count" (1 patient = 1 Before-after case? Counted by treatment?)
- ☑ Confirm the experience of your attending physician, not the entire clinic
- ☑ View Before-after case photos taken under "the same conditions" with long-term progress
- ☑ Ask whether adequate consultation time is being reserved
- ☑ Reverse-calculate the math behind "○ten thousand Before-after cases" yourself
What matters in choosing a cosmetic surgery clinic is not finding comfort in the "size" of the numbers, but understanding what those numbers "actually mean."
A trustworthy clinic will answer confidently even if asked about the definition of their numbers. First, ask during your consultation: "How do you count your Before-after case numbers?" The answer will reveal the clinic's integrity.
About the author of this article
Hiromitsu NakamuraPhysician
Zetith Beauty Clinic Ginza, Osaka, Fukuoka
He has a track record of research presentations at domestic and international academic conferences, and is also involved in technical instruction and education for Zetith Beauty Clinic as a whole. He specializes in precision nasal surgery based on anatomical evidence and pursues natural results tailored to each individual's bone structure and tissue.