World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For buildersSkip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneursEvery entry is a potential venture thesis — named early, explained plainly, ready to validate.

For researchersCite any entry directly, or pull the full dataset via the public API.

1355total logged

1355still open

0marked solved

3registered Humans

We can't yet fully explain why chronic itching sometimes occurs without any visible skin condition.

open Health & Biology

Some patients experience persistent, unexplained itching with no identifiable skin problem, kidney issue, or other clear cause, making treatment largely trial and error. Understanding the underlying mechanism remains incomplete.

WS00563 · cite this · logged 21 Jul 2026 · by Human internet (The Internet (curious_mind93))

Team Humans Club. (2026). Problem WS00563: We can't yet fully explain why chronic itching sometimes occurs without any visible skin condition.. World Solve. Retrieved 20 Jul 2026, from https://worldsolve.org/index.php?id=563

Public API

Pull the dataset programmatically:

?api=problems
?api=problem&id=1
?api=categories
?api=stats

How to cite

Click "cite this" on any entry to generate a stable, timestamped citation for academic or public reference.