The short answer
NIH is the federal government's medical research agency, made up of 27 institutes and centers, including the National Cancer Institute. It invests billions each year, with more than 80 percent going out as competitive grants to researchers at universities, medical schools and other institutions. It funds the science behind your treatment, but it is not a clinic and does not manage your care.
NIH states its aim as enhancing health, lengthening life, and reducing illness and disability.
NIH is made up of 27 institutes and centers, each with its own research agenda; the National Cancer Institute is one of them.
Over 80 percent of NIH funding goes out as competitive grants, described as almost 50,000 grants to more than 300,000 researchers at more than 2,500 universities, medical schools and other research institutions.
About 10 percent supports research by nearly 6,000 scientists in NIH's own laboratories, most on the Bethesda, Maryland campus.
Choose how you want to understand this
The full explanation.
A funder more than a hospital
NIH is the federal government's medical research agency. Its own description of its purpose is short. NIH seeks to enhance health, lengthen life, and reduce illness and disability.
Notice what is missing. There is no promise to treat you. NIH is built to produce knowledge, and most of that knowledge is produced somewhere else with NIH money.
NIH is made up of 27 institutes and centers. Each has its own research agenda. One of them is the National Cancer Institute.
Where the money actually goes
This is the part most people get wrong, and it explains a lot about how cancer research reaches patients.
More than 80 percent of NIH funding leaves the agency. NIH describes it as almost 50,000 competitive grants to more than 300,000 researchers at more than 2,500 universities, medical schools and other research institutions.
About 10 percent stays in house. That supports projects run by nearly 6,000 scientists in NIH's own laboratories, most of them on the campus in Bethesda, Maryland.
So when you hear that a treatment came out of federally funded research, the lab was usually at a university. The check came from NIH.
NIH also states the size of the investment. Its pages describe an annual investment in medical research measured in the tens of billions of dollars. The exact figure changes with each budget year, so read the number on NIH's own budget page rather than quoting one from memory.
What that means for you today
Three things are practical.
First, research money follows applications. Centers with large research programs tend to have more open studies. That is part of why an academic cancer center may offer options a smaller practice cannot.
Second, the science behind your standard treatment probably has NIH fingerprints on it. NIH points to gains in life expectancy over the last century and to declining cancer diagnosis and death rates as results of this kind of sustained research.
Third, your route into NIH-funded work is a trial, not a phone call. You ask your own team what studies exist, or you look at the federal trial listings, or you get a consultation at a research center.
What NIH can do for a patient today
NIH can be the reason a study exists near you. It funds the grant that pays the coordinator who enrolls patients.
NIH also produces public information. Its institutes publish plain-language material about diseases they study, and NIH says it works to improve the quality of health and science information available to the public.
For cancer specifically, the practical door is the National Cancer Institute, which runs patient-facing information services and trial listings. NIH itself is the parent organization.
And NIH mentions opportunities for the public to be involved in the nation's medical research agenda. If you want your experience to count for something beyond your own chart, that is where to look.
What NIH cannot do
NIH is not your care team. It will not review your scans, second-guess your oncologist, or write you a prescription.
It does not approve drugs. That is FDA's job. A study NIH funded can look promising and still not be an approved treatment.
It does not pay individual medical bills. Grants go to institutions and projects.
It does not guarantee you a spot in a study. Trials have eligibility rules set by the study protocol, not by NIH's overall budget.
And it does not move fast for one person. The grant cycle is measured in years. If you need something this month, the useful conversation is with your own team about what is available now.
How to use NIH without frustration
Start narrow. If your question is about cancer, go to the National Cancer Institute rather than the NIH homepage. NCI is the institute with the cancer information service, the patient materials and the trial search.
Use NIH itself for the wider picture. What is being funded. Which institute owns a research area. How the money is split between outside grants and in-house labs.
Then bring it back to your appointment. The single most useful sentence you can say is simple. Are there any studies here that fit me, and if not, where would you send me to ask?
Facts on federal pages get updated. Before you rely on a figure or a program detail, check the current version on NIH's own site.
Words to know
Tap any term to see what it means.
Common questions
Can NIH treat my cancer?
NIH runs its own research laboratories and a clinical research program, but it is not a general treatment hospital. Care at NIH happens through enrollment in a specific study. Your regular treatment stays with your own team.
Is the National Cancer Institute the same as NIH?
No. NCI is one of the 27 institutes and centers that make up NIH. It is the institute focused on cancer research and training.
Does NIH decide which drugs get approved?
No. That is the Food and Drug Administration. NIH funds and conducts research; FDA reviews and approves products.
How does NIH money reach a hospital near me?
Mostly through competitive grants. A researcher at a university or medical center applies, and if funded, the work happens there. That is one reason academic centers often run more trials.
Why do NIH budget figures differ between pages?
Budget numbers are updated on different schedules and different pages describe different fiscal years. Check the figure on NIH's own budget page for the current year rather than relying on a number you saw elsewhere.
Can I ask NIH for money for my treatment?
No. NIH funds research projects and institutions, not individual medical bills.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
Tap a question to save it to your list (kept on this device).
Your next step
Turn this topic into questions for your next appointment.
Speak With Trained Specialists & Human Navigators
Cancer Explained provides educational guidance, but does not replace trained specialists, social workers, or your medical team.
Talk to a trained cancer information specialist
Free, confidential assistance from NCI Cancer Information Service via phone, chat, or email.
Contact your oncology team
Locate after-hours contact numbers, portal messages, or urgent triage phone lines.
Find a patient navigator
Get one-on-one help with appointments, logistics, translation, and care coordination.
Find a genetic counselor
Discuss inherited mutation risk, family history, and genetic testing options.
Find an oncology social worker
Access emotional counseling, family support groups, and mental health resources.
Find a financial navigator
Locate copay assistance foundations, grant programs, and lodging/travel support.
Find a clinical-trial specialist
Search matching studies and speak with NCI trial information specialists.
Get urgent help
Immediate emergency guidance for fever (>100.4°F during chemo), severe pain, or shortness of breath.
Know someone who needs this?
Plenty of people are looking for something like this and do not know where to start. If this would help a friend or someone you love, send it on — we have written an opening line so you do not have to stare at an empty message. You can change every word of it.
Your message is written and sent in your own email or messaging app — we never see who you send it to, and nothing is added to any list.
Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.
Sources last checked: 2026-09-03 what this meansLast updated: 2026-09-03Next planned review: 2027-09-03
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status — Editorial review complete. This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
General education. Low-risk educational or organizational content. Medical facts are cited to authoritative sources.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Editorial review complete — This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
Read more about our editorial process, our use of AI, and our corrections policy.
Spotted a problem? Report an error — a factual mistake, broken or outdated source, confusing wording, or anything that seems unsafe. Please do not include names, medical record numbers, dates of birth, addresses, or other identifying medical information in your report.
After using this page, do you understand what to do next?
Anonymous — we only record the answer, never who gave it.
Related articles
Still have questions?
Educational answers, plain language
Free to print and share