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 can't yet fully prevent the bone density loss that occurs after menopause.
open
Global / Unspecified, Global
Hormonal changes after menopause accelerate bone loss, increasing fracture risk, and current prevention methods only partially offset this decline. A more effective, targeted prevention approach remains needed.
Citation ID: WS00554
Title: We can't yet fully prevent the bone density loss that occurs after menopause.
URL: https://worldsolve.org/index.php?api=problem&id=554
We don't have an effective way to treat chronic dry eye syndrome for a significant share of sufferers.
open
Global / Unspecified, Global
Chronic dry eye can be persistent and uncomfortable, and while treatments exist, many patients don't find lasting relief from current options. A more effective, longer-lasting treatment remains an unmet need.
Citation ID: WS00553
Title: We don't have an effective way to treat chronic dry eye syndrome for a significant share of sufferers.
URL: https://worldsolve.org/index.php?api=problem&id=553
We haven't solved how to prevent malnutrition-related stunting in children in food-insecure regions.
open
Global / Unspecified, Global
Chronic malnutrition in early childhood can cause lasting physical and cognitive effects that are difficult to reverse later in life. Preventing this before it happens remains far more effective, and far less solved, than treating it afterward.
Citation ID: WS00552
Title: We haven't solved how to prevent malnutrition-related stunting in children in food-insecure regions.
URL: https://worldsolve.org/index.php?api=problem&id=552
We can't yet fully explain why chronic inflammation persists in some people without an obvious ongoing cause.
open
Global / Unspecified, Global
Low-grade chronic inflammation is linked to numerous diseases, yet in many patients there's no clear infection or injury explaining why it continues. Understanding this could unlock treatments for a wide range of related conditions.
Citation ID: WS00551
Title: We can't yet fully explain why chronic inflammation persists in some people without an obvious ongoing cause.
URL: https://worldsolve.org/index.php?api=problem&id=551
We don't have a reliable, non-invasive way to diagnose endometriosis without surgery.
open
Global / Unspecified, Global
Confirming an endometriosis diagnosis often still requires invasive surgery, delaying treatment for patients who could benefit from earlier intervention. A reliable non-invasive diagnostic method remains an important unmet need.
Citation ID: WS00550
Title: We don't have a reliable, non-invasive way to diagnose endometriosis without surgery.
URL: https://worldsolve.org/index.php?api=problem&id=550
We haven't found a way to fully prevent the recurrence of ulcers in patients treated for H. pylori infection.
open
Global / Unspecified, Global
Even after successful treatment of the bacteria that commonly causes stomach ulcers, some patients experience recurring ulcers due to other contributing factors. A more comprehensive prevention approach remains needed.
Citation ID: WS00549
Title: We haven't found a way to fully prevent the recurrence of ulcers in patients treated for H. pylori infection.
URL: https://worldsolve.org/index.php?api=problem&id=549
We can't yet fully prevent the long-term cognitive effects of untreated sleep apnea.
open
Global / Unspecified, Global
Sleep apnea, when left untreated for years, is linked to cognitive decline and other health issues, yet many cases go undiagnosed simply because symptoms are mistaken for normal fatigue. Earlier, more widespread detection remains an unmet need.
Citation ID: WS00548
Title: We can't yet fully prevent the long-term cognitive effects of untreated sleep apnea.
URL: https://worldsolve.org/index.php?api=problem&id=548
We don't have an effective, affordable treatment for river blindness available everywhere it's needed.
open
Global / Unspecified, Global
This parasitic disease continues to cause preventable blindness in parts of Africa and Latin America, largely due to limited access to consistent treatment. Expanding affordable access remains the main barrier rather than lack of an effective treatment.
Citation ID: WS00547
Title: We don't have an effective, affordable treatment for river blindness available everywhere it's needed.
URL: https://worldsolve.org/index.php?api=problem&id=547
We haven't solved why some people experience severe reactions to vaccines while most don't.
open
Global / Unspecified, Global
Vaccines are safe and effective for the vast majority of people, but a small number experience severe reactions for reasons not yet fully understood. Better prediction of who's at risk could make vaccination even safer.
Citation ID: WS00546
Title: We haven't solved why some people experience severe reactions to vaccines while most don't.
URL: https://worldsolve.org/index.php?api=problem&id=546
We can't yet fully cure chronic sinus infections that don't respond to standard antibiotics or surgery.
open
Global / Unspecified, Global
Some patients with chronic sinusitis continue experiencing symptoms even after surgical intervention, suggesting current treatments don't address every underlying cause. A more complete understanding and treatment approach remains needed.
Citation ID: WS00545
Title: We can't yet fully cure chronic sinus infections that don't respond to standard antibiotics or surgery.
URL: https://worldsolve.org/index.php?api=problem&id=545
We don't have a widely accessible way to detect and treat postpartum thyroid dysfunction early.
open
Global / Unspecified, Global
Thyroid problems after childbirth can cause fatigue, mood changes, and other symptoms that are sometimes mistaken for normal postpartum adjustment, delaying diagnosis. Routine, accessible screening remains inconsistently practiced.
Citation ID: WS00544
Title: We don't have a widely accessible way to detect and treat postpartum thyroid dysfunction early.
URL: https://worldsolve.org/index.php?api=problem&id=544
We haven't found a reliable way to prevent hospital readmissions for chronic disease patients after discharge.
open
Global / Unspecified, Global
Many patients with chronic conditions end up back in the hospital shortly after being discharged, often due to gaps in follow-up care rather than a failure of the original treatment. Better post-discharge support remains an unresolved healthcare system issue.
Citation ID: WS00543
Title: We haven't found a reliable way to prevent hospital readmissions for chronic disease patients after discharge.
URL: https://worldsolve.org/index.php?api=problem&id=543
We can't yet fully explain why certain populations are more genetically susceptible to specific diseases.
open
Global / Unspecified, Global
Some diseases occur far more frequently within certain populations due to genetic factors that aren't yet fully mapped or understood. Filling this knowledge gap could lead to more targeted prevention and treatment.
Citation ID: WS00542
Title: We can't yet fully explain why certain populations are more genetically susceptible to specific diseases.
URL: https://worldsolve.org/index.php?api=problem&id=542
We don't have an effective way to prevent the recurrence of blood clots in patients prone to them.
open
Global / Unspecified, Global
Patients who've had one dangerous blood clot are at ongoing risk of another, and current prevention relies mainly on long-term blood thinners that carry their own risks. A more targeted, lower-risk prevention method remains needed.
Citation ID: WS00541
Title: We don't have an effective way to prevent the recurrence of blood clots in patients prone to them.
URL: https://worldsolve.org/index.php?api=problem&id=541
We haven't solved how to treat chronic pain in cancer survivors after treatment has ended.
open
Global / Unspecified, Global
Many cancer survivors continue to experience pain long after their cancer treatment concludes, and this pain is often undertreated because it's assumed to have resolved along with the disease. Better long-term pain management for survivors remains an overlooked need.
Citation ID: WS00540
Title: We haven't solved how to treat chronic pain in cancer survivors after treatment has ended.
URL: https://worldsolve.org/index.php?api=problem&id=540
We can't yet fully prevent the long-term effects of childhood trauma on adult physical health.
open
Global / Unspecified, Global
Research shows a strong link between childhood trauma and adult physical illness, but effective, scalable prevention and early intervention remain limited. Closing this gap could improve both mental and physical health outcomes across entire populations.
Citation ID: WS00539
Title: We can't yet fully prevent the long-term effects of childhood trauma on adult physical health.
URL: https://worldsolve.org/index.php?api=problem&id=539
We don't have a scalable solution to detect and treat rare genetic diseases affordably in most of the world.
open
Global / Unspecified, Global
Diagnosing rare genetic conditions often requires expensive genetic testing that remains inaccessible in much of the world, delaying or entirely preventing diagnosis. Making this technology affordable and widely available remains unresolved.
Citation ID: WS00538
Title: We don't have a scalable solution to detect and treat rare genetic diseases affordably in most of the world.
URL: https://worldsolve.org/index.php?api=problem&id=538
We haven't found an effective way to prevent the muscle wasting caused by long hospital stays.
open
Global / Unspecified, Global
Extended time in a hospital bed, especially in intensive care, can cause significant muscle loss that affects recovery and long-term function. Better prevention methods during hospitalization remain underdeveloped.
Citation ID: WS00537
Title: We haven't found an effective way to prevent the muscle wasting caused by long hospital stays.
URL: https://worldsolve.org/index.php?api=problem&id=537
We can't yet fully explain the biological causes of most cases of unexplained infertility.
open
Global / Unspecified, Global
A meaningful share of infertility cases have no identifiable cause even after thorough testing, leaving both patients and doctors without clear answers or targeted treatment. Understanding these cases better remains an open research priority.
Citation ID: WS00536
Title: We can't yet fully explain the biological causes of most cases of unexplained infertility.
URL: https://worldsolve.org/index.php?api=problem&id=536
We don't have a widely available, effective treatment for chronic hives that don't respond to standard medication.
open
Global / Unspecified, Global
A subset of patients with chronic hives don't respond well to typical antihistamine treatment, leaving them with persistent, disruptive symptoms and few further options. More effective alternatives remain limited.
Citation ID: WS00535
Title: We don't have a widely available, effective treatment for chronic hives that don't respond to standard medication.
URL: https://worldsolve.org/index.php?api=problem&id=535