79 free videos
Cancer, explained on video
Short plain-language explainers on the things people search at two in the morning — what a pathology report is saying, when a symptom is worth checking, which prevention advice has evidence behind it. Every video is captioned, hosted by us, and carries no ads and no tracking. Each one opens on the page with the full written guide beneath it.
These videos are general education. They cannot tell you what your own result means — only your care team can do that.
Understanding your reports and scans
Pathology, imaging, staging and the individual words that cause the most worry. The first seven run two to three minutes; the rest are about a minute each.
How to read a cancer pathology reportWhich section of a pathology report holds the answer, and what the rest is for.3:27 · Captioned
Biopsy results, explainedWhat a biopsy measures, why results take about 10 days, and what the report will say.2:59 · Captioned
How to read a CT or MRI reportWhy CT and MRI reports sound frightening on purpose, and how to read yours calmly.2:42 · Captioned
Tumor markers, explainedPSA, CA-125, CEA — what tumor marker blood tests can and cannot tell you.2:34 · Captioned
Cancer staging and TNM, explainedT, N, M and stages 0-4 — the whole staging system in plain language.2:32 · Captioned
Surgical margins, explainedPositive, negative and close margins — what the edges of removed tissue can tell you.2:16 · Captioned
Grade vs. stage — what's the difference?Grade is about how cells look; stage is about how far cancer has spread.2:10 · Captioned
What does BI-RADS mean?The BI-RADS 0-6 scale radiologists use to summarize a mammogram.57 sec · Captioned
What a 5-year survival rate really meansWhat a 5-year survival rate measures, and why it can't predict an individual.54 sec · Captioned
Benign vs. malignantThe two biggest words on a pathology report, side by side.52 sec · Captioned
Lymph node status, explainedNode negative, node positive — what lymph node status means for staging.52 sec · Captioned
What is a PSA test?What a PSA level measures, and why the trend matters more than one number.52 sec · Captioned
Can tumor markers be normal with cancer?Why a normal tumor marker doesn't rule cancer in or out.51 sec · Captioned
What does 'poorly differentiated' mean?What 'poorly differentiated' on a pathology report actually means.51 sec · Captioned
Remission vs. cureRemission and cure mean different things — and time is what separates them.50 sec · Captioned
What does 'metastasis' mean?What metastasis means, and why a cancer that travels is still the same cancer.50 sec · Captioned
'Suspicious' on a scan report'Suspicious' on a scan means 'deserves a closer look' — not a diagnosis.49 sec · Captioned
'Clinical correlation recommended''Clinical correlation recommended' is routine — here's what it asks for.47 sec · Captioned
The Gleason score, explainedWhy prostate cancer gets two grading numbers, and what they add up to.47 sec · Captioned
HER2 status, explainedWhat HER2-positive means, and the targeted treatments it opens up.46 sec · Captioned
What does triple negative mean?The three negative tests behind 'triple negative' — and what treatment looks like.44 sec · Captioned
What does 'invasive' mean?'Invasive' means past the first tissue layer — it does not mean the cancer has spread.43 sec · Captioned
What does 'in situ' mean?'In situ' means the cells have stayed in the layer where they started.42 sec · Captioned
What is Ki-67?The percentage that estimates how many cancer cells are dividing.42 sec · Captioned
Cancer basics
What cancer is, how it spreads, how it is named, and what remission and survival rates actually mean.
What actually causes cancer?Cancer starts with gene changes that build up over years — here's the mechanism.1 min · Captioned
Can cancer be cured?Many cancers can be cured — and why doctors carefully say 'remission'.46 sec · Captioned
Is cancer contagious?You can't catch cancer — but some infections that spread between people raise risk.46 sec · Captioned
What is cancer, in plain language?One clear plain-language definition of cancer — and why it's really 100+ diseases.46 sec · Captioned
How does cancer spread?What metastasis is: cells break away, travel through blood or lymph, and regrow.45 sec · Captioned
Why breast cancer in the lung is still breast cancerWhy breast cancer in the lung is still breast cancer — and why the name guides treatment.45 sec · Captioned
Symptoms and warning signs
What is worth checking, how soon, and the patterns that change the timeline.
When is a mole worth checking?Normal moles usually don't change — the ABCDE signs worth checking.1:03 · Captioned
Are night sweats a sign of cancer?Night sweats are usually not cancer — the pattern that changes the answer.55 sec · Captioned
How long is too long for a cough?A cough over 3 weeks gets checked — any blood in phlegm is same-day.55 sec · Captioned
Is a breast lump always cancer?Most breast lumps are not cancer — and exactly when to call anyway.55 sec · Captioned
Childhood cancer signs parents ask aboutChildhood cancer is rare — the persistent signs doctors actually check.53 sec · Captioned
A lump in your neck: when to worryMost neck lumps are infection-fighting glands — when one needs a closer look.48 sec · Captioned
A symptom is not a diagnosisA symptom is a signal, not a diagnosis — most have common non-cancerous causes.46 sec · Captioned
Screening and early detection
Who each test is for, what the guidance says now, and the benefits and harms together.
Your mammogram says 'dense breasts' — now what?Dense breast tissue is normal — and what supplemental screening can and can't do.1:03 · Captioned
Do self-exams actually work?Formal self-exams didn't reduce deaths in trials — body awareness replaced them.58 sec · Captioned
Called back after a screening? Read this firstCalled back after screening? False positives are designed into how screening works.53 sec · Captioned
Lung cancer screening exists — who qualifies?Lung cancer screening exists for people 50-80 with a smoking history.52 sec · Captioned
Colonoscopy: the test that prevents cancerColonoscopy is the only screening test that removes what it finds.51 sec · Captioned
Cancer screening: benefits AND harmsScreening's real benefits and real harms — and why it's a shared decision.50 sec · Captioned
Mammograms: when and how oftenMammograms every 2 years, ages 40-74 — and why callbacks usually aren't cancer.49 sec · Captioned
Colon cancer screening starts at 45 nowColorectal screening starts at 45 now — and colonoscopy isn't the only test.48 sec · Captioned
What a Pap test actually looks forThe Pap test looks for pre-cancer — catching changes before cancer exists.48 sec · Captioned
Prevention and risk
The risk factors with the strongest evidence behind them — and honest limits on what any of them can promise.
Hepatitis C: the test everyone should get onceHepatitis C is silent, common, and over 95% curable — CDC says test once.1 min · Captioned
Alcohol and cancer riskAlcohol is a Group 1 carcinogen linked to seven cancers — the under-known risk.59 sec · Captioned
The fastest-rising HPV cancer isn't cervicalThroat cancer is now the most common HPV cancer — and vaccination is the tool.59 sec · Captioned
Air pollution and lung cancerAir pollution is a Group 1 carcinogen — what that means for your actual risk.57 sec · Captioned
Cancer runs in my family — now what?Most cancers aren't inherited — and the red-flag patterns worth acting on.54 sec · Captioned
Does vaping cause cancer?What's actually in e-cigarette aerosol — and why long-term risk is unknown.54 sec · Captioned
The stomach bacterium linked to cancerH. pylori is a stomach cancer risk you can test for and treat with antibiotics.54 sec · Captioned
Does antiperspirant cause breast cancer?NCI: no evidence links antiperspirants to breast cancer.52 sec · Captioned
The #2 cause of lung cancer is in some homesRadon is the #2 cause of lung cancer — testing your home costs under $25.52 sec · Captioned
Can a positive attitude fight cancer?NCI: no evidence links attitude to cancer risk or survival — drop the pressure.49 sec · Captioned
Is it too late to quit smoking?It is never too late to quit smoking — what works and where free help is.49 sec · Captioned
Tanning beds and skin cancerTanning beds raise melanoma risk — a tan is skin damage, not health.49 sec · Captioned
Does microwaving food cause cancer?FDA: microwaves heat food — they don't make it radioactive or contaminated.48 sec · Captioned
The #1 preventable cause of cancerTobacco is the largest preventable cause of cancer — far beyond the lungs.48 sec · Captioned
What should I eat to lower cancer risk?The eating pattern — not any single food — is what lowers cancer risk.48 sec · Captioned
Exercise and cancer riskPhysical activity is linked with lower risk of at least eight cancers.47 sec · Captioned
HPV and cancer: what to knowHPV is common and usually clears — persistent infections cause six cancers.47 sec · Captioned
The vaccine that prevents cancerThe HPV vaccine prevents six cancer types, and is approved up to age 45.46 sec · Captioned
Body weight and cancer riskOverweight and obesity are linked to at least 13 types of cancer.45 sec · Captioned
The other anti-cancer vaccineThe hepatitis B vaccine protects against a leading cause of liver cancer.45 sec · Captioned
Secondhand smoke and cancerSecondhand smoke can cause lung cancer in people who never smoked.43 sec · Captioned
Myth checks
The claims people actually search, weighed against what federal sources say.
Does sugar feed cancer?Where the 'sugar feeds cancer' myth comes from, and what evidence shows.1:05 · Captioned
Can supplements prevent cancer?Trials found supplements don't prevent cancer — and high doses can backfire.59 sec · Captioned
Vitamin D and cancer preventionThe 25,871-person VITAL trial found vitamin D didn't reduce cancer.58 sec · Captioned
Does sunscreen cause cancer?No good evidence sunscreen causes cancer — UV is the proven risk.56 sec · Captioned
Processed meat and cancerThe processed meat link is real — and the risk size surprises people.55 sec · Captioned
The frozen water bottle mythThe frozen-bottle 'dioxin' warning is a hoax — bottles contain no dioxins.54 sec · Captioned
Does 5G or Wi-Fi cause cancer?What the physics and large studies say about 5G, Wi-Fi and cancer.53 sec · Captioned
The underwire bra mythThe bra-and-breast-cancer claim, tested and rejected.53 sec · Captioned
Does stress cause cancer?Stress isn't a proven direct cause of cancer — the indirect paths are what matter.51 sec · Captioned
Do artificial sweeteners cause cancer?The aspartame headlines explained — and the safety limit that didn't move.47 sec · Captioned
Do cell phones cause brain cancer?Cell phone energy can't break DNA — and tumor rates haven't risen with use.47 sec · Captioned
The alkaline diet claimFood can't change your blood pH — and no evidence the diet treats cancer.45 sec · Captioned
How these are made
Each script is written from the same federal sources as the written guide it accompanies — NCI, CDC, FDA and NIH — then checked line by line against those pages before it is recorded, and read again after.
The narration is a synthetic voice reading reviewed copy, which is how a library this size exists without paid staff. Where a video and a written page could disagree, the written page and its named sources are the record. How we review content.