If you run or invest in a clinic in Colombia, every empty chair that goes unannounced is money you already spent: the practitioner’s time, the room, the slot you could have given to someone else. That’s a no-show — and it’s one of the quietest costs in any appointment-based business.
What is a no-show in a clinic?
A no-show is when someone books an appointment and neither shows up nor tells you. It isn’t a cancellation — with a cancellation you at least free the slot — it’s a silent gap that’s nearly impossible to fill at the last minute. For dental, aesthetic and medical clinics it’s especially expensive, because each appointment reserves a block of practitioner time you can’t get back.
What does a missed appointment actually cost?
We’re not going to hand you an invented figure — the cost depends on your clinic. But you can work it out yourself in about thirty seconds:
| Your number | Example |
|---|---|
| Average value of one appointment | $120,000 COP |
| No-shows per month | 20 |
| Monthly cost of no-shows | $2,400,000 COP |
Drop in your own slot value and your own monthly count. The result almost always surprises owners — and it’s almost always larger than what it costs to fix.
Why do patients book and then vanish?
It’s rarely bad faith. The usual reasons are plain: they forgot, they wrote the date down wrong, they felt awkward cancelling, or they tried to reach you on a channel where nobody answered. All of them share one thing — they’re prevented by a timely reminder and an easy way to reschedule.
Do WhatsApp reminders reduce no-shows, and by how much?
Yes, and it’s been studied. Research on automated appointment reminders reports reductions on the order of 30–50% in non-attendance when the reminders are well designed. The BMC Ophthalmology study from Imperial College, for instance, observed non-attendance fall from 18.1% to 11.2% with reminders. We won’t promise you a magic number — we’ll tell you what the evidence supports and what you’ll be able to measure in your own clinic.
WhatsApp adds an edge over SMS or a phone call: in Colombia the message gets read (it’s the channel), and the patient can confirm or reschedule right in the same thread, with no friction.
What reminder cadence works best?
A simple sequence usually does the job: a confirmation at booking, a reminder the day before, and a nudge a few hours ahead — each with a one-tap option to reschedule. A WhatsApp AI agent handles this on its own, 24/7, and logs the consent that Ley 1581 requires. If you’re weighing whether to build that yourself or have it installed, the DIY vs. done-for-you breakdown lays out the trade-offs honestly.
Cutting no-shows doesn’t mean penalizing your patients. It means reminding them on time, through the channel they actually read — and making rescheduling as easy as replying to a message.
Want to see it run on your own numbers? You can try it for 30 days free, no card required.