Every marketplace and platform faces the same terrifying first problem: nobody comes because nobody's there, and nobody's there because nobody comes. In health, that cold-start is harder than anywhere else, because the currency isn't only supply and demand, it's trust. And trust has its own cold-start: nobody trusts a platform until other people do.
The cold-start is a trust problem in disguise
Most platform post-mortems blame the product. The real killer is usually liquidity: too few of one side to make the other show up. In health you're stacking a trust cold-start on top of the liquidity one, a patient won't put their body in the hands of an empty, unproven platform, and a clinician won't lend their name to one either. Solve features all day; if you don't manufacture early trust and density, nothing moves.
I've solved this cold-start twice
At Praava I helped build a genuinely two-sided operation, patients on one side, doctors and corporate buyers on the other, and grew the corporate side from 342 to ~1,400 clients by seeding trust deliberately: proof, reliability, and reputation before scale. Earlier, I took the used-motorbike category on Ekhanei to No. 1 in two and a half months, which is a pure liquidity-and-trust problem, a stranger selling a stranger something neither can fully verify. Both worked the same way: concentrate, prove, densify, then expand.
How you actually seed it
You don't launch broad; you launch dense. Pick one side, one segment, one geography, and over-serve it until the platform feels alive to a newcomer. Manufacture trust with proof, reviews, credentials, guarantees, a visible track record, and buy down the perceived risk of being early. Density in a narrow slice beats thin coverage everywhere, because liquidity and trust are both local before they're global.
The dual-market note
Emerging markets are pure cold-start laboratories, low baseline trust, thin infrastructure, no assumptions to coast on, which is exactly why building there teaches the mechanics so well. The same discipline that launches a marketplace in Dhaka launches a health platform in Ohio; the US just had more inherited trust to spend, and that cushion is thinning.
The short version
- Platforms die from a lack of liquidity; health platforms add a trust cold-start on top.
- Features don't fix it, early trust and density do.
- I've solved it twice: Praava's two-sided build (342→~1,400 corporate) and Ekhanei to No. 1 in 2.5 months.
- Launch dense, not broad: concentrate, prove, densify a narrow slice, then expand.
If your platform lost its features but kept its liquidity and trust, would it survive, and which of the three are you actually building first?
Frequently asked questions
What is the "trust cold-start" problem in health platforms?
It's the compounding version of the classic marketplace cold-start: nobody comes because nobody's there, and nobody's there because nobody comes. In health, patients won't put their body in an empty, unproven platform's hands, and clinicians won't lend their name to one either, so you're stacking a trust cold-start on top of a liquidity one.
How do you seed trust and liquidity on a new platform?
I launch dense, not broad: one side, one segment, one geography, over-served until the platform feels alive to a newcomer. Manufacture trust with proof, reviews, credentials, guarantees, and a visible track record, buying down the perceived risk of being early, because density in a narrow slice beats thin coverage everywhere.
What's an example of solving this cold-start in practice?
At Praava I grew the corporate side of a two-sided operation from 342 to roughly 1,400 clients by seeding trust deliberately, proof, reliability, reputation, before scale. Earlier, I took the used-motorbike category on Ekhanei to No. 1 in two and a half months, the same concentrate-prove-densify-expand approach applied to a pure stranger-to-stranger trust problem.
Md Shafaat Ali Choyon (MPH, CHES®, MBA, MCIM) is a growth, marketing and public-health strategist who builds and runs AI in production, with 17 years across telecom, fintech, e-commerce, consumer tech and healthcare in the US and Bangladesh. See the essays or the portfolio.