How people get it: Through your doctor. In the US, most recommended screenings are covered by insurance.
The basics
What it is
Screening tests can find diseases early, when they are easier to treat.
How it's thought to help
Stool tests check stool samples for hidden blood or other signs of cancer. The Pap test looks for precancers, which are cell changes on the cervix that might become cancer if not treated.
Sources: MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗ · CDC: Cancer Screening Tests | Cancer ↗
What people use it for
- Doctors commonly screen for conditions such as diabetes, high blood pressure, high cholesterol, osteoporosis, and obesity.
- Colorectal cancer screening is used to check for signs of colorectal cancer and to remove polyps.
- The CDC says screening tests can find breast, cervical, colorectal, and lung cancers early.
Sources: MedlinePlus (NIH): Health Screening: MedlinePlus ↗ · MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗ · CDC: Cancer Screening Tests | Cancer ↗
What the research has found so far
- The CDC says screening for ovarian, pancreatic, prostate, testicular, and thyroid cancers has not been shown to reduce deaths from those cancers.
- The task force found too little evidence on the balance of benefits and harms of screening for bladder, oral, and skin cancer.
- Mammograms work best at finding breast cancer in women ages 40 to 74.
- It is not clear how well mammograms work in women age 75 and older.
- MRIs find more breast cancers than mammograms but are also more likely to show cancer when there is none.
Sources: CDC: Cancer Screening Tests | Cancer ↗ · MedlinePlus (NIH): Breast cancer screening: MedlinePlus Medical Encyclopedia ↗
On health screenings and aging, PubMed lists 2,251 trials in people, 11,500 studies that watched people over time, 11 animal and lab studies. See the counts and searches
Stage 4 because it is recommended by the US Preventive Services Task Force (its A and B screening recommendations). See the source ↗
A stage shows how far research has got, not whether it will work for you. How stages work
Side effects and risks
- After a virtual colonoscopy there may be cramping or bloating for about an hour.
- Breast screening risks include false positives, which can lead to more tests and anxiety.
- Breast screening can give false negatives, so women may not know they have cancer and may delay treatment.
- Repeated mammogram x-rays can cause cancer, though the page says the benefits outweigh the radiation harm.
Sources: MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗ · MedlinePlus (NIH): Breast cancer screening: MedlinePlus Medical Encyclopedia ↗
Who should be careful
- Which tests a person needs depends on age, sex, family history, and risk factors.
- Virtual colonoscopy is not recommended during pregnancy because it uses x-rays.
- People with implanted medical devices such as a pacemaker are told to tell their provider before a virtual colonoscopy.
- People may need to stop certain medicines before some colon tests, and are told to tell their provider about everything they take.
- A person who has a sedated colonoscopy needs someone to take them home.
Sources: MedlinePlus (NIH): Health Screening: MedlinePlus ↗ · MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗
Approval and legal status
The CDC supports screening for breast, cervical, colorectal, and lung cancers as recommended by the US Preventive Services Task Force. A provider usually prescribes stool tests, which can be done at home.
Sources: CDC: Cancer Screening Tests | Cancer ↗ · MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗
What to expect
- Some screenings can be done in a doctor's office, while others need special equipment at a different office or clinic.
- A virtual colonoscopy takes about 10 to 15 minutes and is usually done in a radiology department.
- A mammogram is done in a hospital or clinic and takes only a few minutes.
- A colonoscopy is needed only every 10 years if no polyps were found before.
Sources: MedlinePlus (NIH): Health Screening: MedlinePlus ↗ · MedlinePlus (NIH): Colorectal Cancer Screening Tests: MedlinePlus Medical Test ↗ · MedlinePlus (NIH): Breast cancer screening: MedlinePlus Medical Encyclopedia ↗
Questions to ask your doctor
- Is health screenings a good fit for me, given my health and the medicines I take?
- Is there anything I should avoid or watch for, given my health conditions?
- Where should I start, and how much is right for me?
- How would we tell whether it is helping, and when should we review it?
This is general information gathered from the sources listed, not medical advice. Talk to your doctor before starting anything new.
What experts say
No expert views collected yet. Each one we add names the person and links to where they said it.
What others are writing
Recent articles about Health screenings from health journalists, hospitals and universities. We link to them; we don't write or endorse them.
Should you consider a preventive full-body MRI? ↗
“MRIs are excellent for screening people at high risk of developing certain conditions and for evaluating how well a treatment has worked for someone.”
The article says MRI screening suits high-risk patients but has limits, such as with metal implants and lung motion.
New guidelines aim to screen millions more for lung cancer - Harvard Health ↗
“The latest American Cancer Society (ACS) updated guidelines aim to reduce deaths by considerably expanding the pool of people who seek annual, low-dose CT lung screening scans.”
New American Cancer Society guidelines broaden eligibility for annual low-dose CT lung cancer screening to many more smokers.
Recent research
Lung scan bone density may predict spine fractures in heavy smokers
Researchers checked bone density from lung scans against later spine fractures and deaths.
Hormone therapy and menopause timing linked to breast cancer outcomes
Women who used hormone therapy had more breast cancer cases but fewer deaths from it.
Mailed stool test kits did not clearly raise colon cancer screening after 3 years
Mailing stool test kits to patients at community clinics raised screening at 2 years, but not at 3 years.
Trials
None of the registered trials of Health screenings is one we have linked as aging-related yet.
ClinicalTrials.gov lists 936 registered trials that mention Health screenings, for any condition (the count in The science below). Here we show the ones about aging. See them all ↗
The science
Counted from PubMed and ClinicalTrials.gov on Oct 30, 2026, using one search for Health screenings in relation to aging. Each link opens the exact search.
- Randomized trials in people
- 1,857 search ↗
- Large trials (multicenter or phase 3)
- 487 search ↗
- Phase 3 trials
- 20 search ↗
- Trials in people
- 2,251 search ↗
- Studies that watched people over time
- 11,500 search ↗
- Animal and lab studies
- 11 search ↗
- Registered trials
- 936 search ↗
PubMed search used
("cancer screening"[tiab] OR "colorectal cancer screening"[tiab] OR "lung cancer screening"[tiab] OR "mammography screening"[tiab] OR "Early Detection of Cancer"[mh]) AND (aging[tiab] OR ageing[tiab] OR longevity[tiab] OR healthspan[tiab] OR "older adults"[tiab] OR "older people"[tiab] OR elderly[tiab] OR "Aged"[mh])
Counts are search results, so they include some records that only mention Health screenings. How we count
Cite or share this page
Longevity Progress. (n.d.). Health screenings: Research stage and evidence. Retrieved October 30, 2026, from https://longevityprogress.com/treatments/health-screenings
<iframe src="https://longevityprogress.com/embed/stage/health-screenings" title="Health screenings: research stage on Longevity Progress" width="340" height="72" style="border:0" loading="lazy"></iframe>
The badge shows this treatment's current research stage and links back here. It updates by itself when the stage changes.