Medical TourismHow Much Does It Cost to Attract One International Patient? The CAC of the Facilitation Business
Key points
- Put simply, customer acquisition cost (CAC) means "all the costs incurred to acquire one actual paying customer (advertising, labor, sales expenses, and so on)."
- An overwhelmingly high acquisition cost (CAC) has to be covered by a far too low lifetime value (LTV), and with no customer ownership, there is no way to make up the loss.
- By my rough estimate based on experience in the field, attracting one international patient costs several hundred thousand won or more.
- To turn a profit on a single case, the treatment fee has to be at least 3 to 4 times the CAC, and unless it is major plastic surgery, many specialties can't clear that bar.
Put simply, customer acquisition cost (CAC) means “all the costs incurred to acquire one actual paying customer (advertising, labor, sales expenses, and so on).”
When people talk about the market for attracting international patients, their questions usually come down to one thing.
“How can we bring in more patients?”
Whether they build a brokering service, do overseas marketing, or run a brokerage agency, they focus on “traffic” and “patient volume.” With international patients visiting Korea now topping 2 million (in Korean), people are thrilled about this market’s growth. But isn’t it time to ask a slightly different question?
“So how much does it actually cost to attract one international patient?”
I don’t know the exact amount yet, but it is clearly expensive. I think this is the real problem hidden behind an international patient market that looks glamorous from the outside.
To understand this problem properly, we need to look at a core business metric: customer acquisition cost (CAC). (I don’t know the exact amount yet, but) let’s look at why CAC is high in the market for attracting international patients.
Why the cost of reaching and persuading people abroad is so overwhelming (High CAC)
Getting someone overseas to learn about an unfamiliar clinic in Korea, buy a plane ticket, and actually lie down on an operating or treatment table involves enormous friction.
This is not just about getting someone to click an ad banner. You have to overcome the language barrier, the physical distance, and a fundamental “distrust” of medical services. To do that, you create multilingual content, run 24-hour customer support, and pay commissions to local influencers or agencies. The marketing cost is likely a different order of magnitude altogether from what it takes to attract one domestic patient. With so many resources going in and such low conversion, it is only natural that customer acquisition cost (CAC) is high.
Why they don’t come back, even after all that effort (Low LTV)
In business, a high CAC is justified only if a customer’s lifetime profit, customer lifetime value (LTV), is much higher than that.
But most international patients visit only once. They come while traveling in Korea, or make one trip for a procedure, pay, go back home, and that is the end of it. They can’t come in regularly for skin care like a neighborhood regular, and they can’t easily bring friends along. You spend a huge amount to bring them in, and the relationship ends with a single purchase. In other words, the second tragedy is that lifetime value (LTV) is far too low.
Why even that one patient isn’t fully “my customer”
If you are a broker (an agency or brokering service) rather than a clinic, this is where it hurts the most. After you absorb a huge CAC and hand the patient over to a clinic, that patient becomes “the clinic’s customer.”
The patient’s medical records, their satisfaction after the procedure, and any chance of a next visit all belong to the clinic. Even if that patient comes back to Korea, the next transaction has nothing to do with me. When a customer you paid so much to bring in leaves your hands completely the moment they arrive, you can’t enjoy the compounding effect of business.
What happens when high acquisition cost (CAC) meets low lifetime value (LTV)
Looking at these three facts, it is honestly bleak. An overwhelmingly high acquisition cost (CAC) has to be covered by a far too low lifetime value (LTV), and with no customer ownership, there is no way to make up the loss.
By my rough estimate based on experience in the field, attracting one international patient costs several hundred thousand won or more. But what if that patient comes in, gets one low-priced minor cosmetic procedure or a skin care treatment, and leaves? Revenue from that one case can never cover the acquisition cost. To turn a profit on a single case, the treatment fee has to be at least 3 to 4 times the CAC (in Korean), and unless it is major plastic surgery, many specialties can’t clear that bar.
On top of that, the market isn’t what it used to be. With the rise of social media like TikTok and Instagram, information has become extremely transparent, and clinics now have their own multilingual coordinators and talk directly to overseas patients. The value of the brokering business, which earned facilitation fees by providing “information on medical institutions” and “interpretation,” is quickly converging to zero.
Why I keep at it in this field anyway
High acquisition cost (CAC) and low lifetime value (LTV) are a huge wall I run into every morning when I get to work. But one thing is clear. Real business starts from recognizing this situation precisely as a “problem.” My goal now is no longer a blind “let’s bring in more patients.” If I’m going to survive in this field, I’ll have to keep working through the questions below.
- “How can I dramatically lower the acquisition cost (CAC) per patient?” (AI automation, organic content, partnerships, etc.)
- “How can I get deeper, longer-lasting value (LTV) from each patient I worked so hard to bring in?” (aftercare services after they return home, coordination with local clinics back home, product (cosmetics) sales, etc.)
Stripping away a vague, rosy picture of the future and facing the costs on a cold Excel sheet. That is where the real start of surviving in this market lies.


