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

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

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

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

open Global / Unspecified, Global

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.

health-biology global-unspecified itching skin yet fully explain chronic sometimes occurs any visible whether philosophy-ethics mathematics-logic haven resolved

WS00563 · Logged by The Internet (curious_mind93) on 2026-07-21T17:41:00Z · Working on: 0

Citation ID: WS00563 Title: We can't yet fully explain why chronic itching sometimes occurs without any visible skin condition. URL: https://www.worldsolve.org/index.php?api=problem&id=563