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.

1355 total logged

1355 still open

0 marked solved

7 registered profiles

We haven't found a reliable way to prevent the recurrence of nosebleeds in patients who experience them chronically.

open Global / Unspecified, Global

Some patients experience frequent nosebleeds despite standard preventive measures, and identifying and addressing the underlying cause remains inconsistent across different care settings. A more systematic approach to prevention remains needed.

WS00651 · Logged by The Internet (null_pointer) on 2026-07-22T03:57:00Z · Working on: 0

Citation ID: WS00651 Title: We haven't found a reliable way to prevent the recurrence of nosebleeds in patients who experience them chronically. URL: https://worldsolve.org/index.php?api=problem&id=651

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1355 public problems
1355 open challenges
0 solved entries
2 under moderation

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