A check-up is a routine medical visit focused on prevention rather than treating a specific problem. You go in feeling fine, and your provider looks for early signs of conditions you might not notice yet, updates your vaccinations, and screens for risks based on your age, sex, and family history. Most adults benefit from a check-up at least once a year, though the specific tests and screenings change as you get older.
What Happens During a Check-Up
The visit typically starts with a nurse or medical assistant measuring your vital signs: blood pressure, heart rate, height, and weight. For reference, a healthy resting blood pressure falls between 90/60 and 120/80 mmHg, and a normal resting pulse is 60 to 100 beats per minute. These numbers give your provider a quick snapshot of your cardiovascular health and help track trends over time.
After that, your provider does a head-to-toe physical exam. This usually includes listening to your heart and lungs with a stethoscope, feeling your abdomen for anything unusual, checking your reflexes, and looking at your eyes, ears, nose, and throat. They’ll also ask about your lifestyle: how you’re sleeping, what you eat, how much you exercise, whether you smoke or drink, and how your mental health feels. Many primary care offices now use short questionnaires to screen for depression and anxiety. Tools like the PHQ-9 for depression and GAD-7 for anxiety are standard in primary care and take just a few minutes to fill out in the waiting room.
Common Blood Tests and Lab Work
Your provider may order blood work either before or after the visit, depending on your age and risk factors. Three panels come up most often:
- Complete blood count (CBC): Measures red blood cells, white blood cells, and platelets. It can flag infections, anemia, and clotting problems.
- Basic metabolic panel (BMP): Checks blood sugar, calcium, electrolytes, and kidney function. This gives a broad look at how your organs are performing.
- Lipid panel: Measures LDL cholesterol, HDL cholesterol, and triglycerides. The American Heart Association recommends starting cholesterol screening at age 20 for people with no known risk factors, then repeating it every four to six years.
Depending on your history, your provider might also order a diabetes screening (recommended starting at age 35 if you’re overweight), a hepatitis C test (a one-time test for all adults ages 18 to 79), or an HIV test (a one-time screening for everyone ages 15 to 65, with annual testing for those at higher risk).
Screenings That Change With Age
A check-up for a 25-year-old looks different from one for a 55-year-old. The screenings your provider recommends shift as your risk profile changes.
Blood pressure should be checked at least once a year at any age. Colorectal cancer screening is recommended starting at age 45 and continuing through age 75. Eye exams become more important after 40, with recommended intervals of every two to four years between ages 40 and 54, then every one to three years from 55 to 64. Lung cancer screening with a low-dose CT scan is recommended annually for adults ages 50 to 80 who have a significant smoking history. For prostate cancer, men between 55 and 69 should talk with their provider about whether a PSA blood test makes sense for them. Bone density screening may come up for people ages 50 to 69 who have risk factors for osteoporosis.
Vaccines Your Provider Will Review
A check-up is the most common time to catch up on vaccinations. Your provider will review your immunization history and recommend anything you’re due for. The CDC’s adult schedule includes several vaccines that apply to most people:
- Flu shot: One dose every year, for all adults.
- Tetanus and pertussis booster (Tdap/Td): Every 10 years.
- COVID-19: One or more updated doses depending on age and previous vaccination.
- Shingles vaccine (RZV): Two doses, typically starting at age 50.
- Pneumococcal vaccine: Recommended for adults 65 and older, or younger adults with certain health conditions.
- HPV vaccine: Typically given through age 26, with some adults up to 45 choosing to get it after a conversation with their provider.
Pregnant individuals have additional recommendations, including RSV vaccination during certain seasons and a Tdap dose during each pregnancy.
How to Prepare for Your Visit
A little preparation makes the visit more useful for both you and your provider. Bring a list of every medication and supplement you take, including doses. If you track your blood pressure, blood sugar, sleep, or food intake at home, bring that data. Write down any symptoms you’ve been ignoring or questions you want to ask, because it’s easy to forget them once you’re in the exam room.
Know your family history, especially for heart disease, cancer, diabetes, and mental health conditions. This helps your provider decide which screenings to order earlier or more frequently. If you’ve seen specialists or had tests done outside your primary care office since your last visit, bring those records or make sure they’ve been sent over.
What It Costs
Under the Affordable Care Act, most health plans must cover a set of preventive services at no out-of-pocket cost when you see an in-network provider. This includes the visit itself, along with recommended screening tests and immunizations. You typically won’t pay a copayment or coinsurance for these covered preventive services, even if you haven’t met your deductible. Coverage details can vary by plan, so it’s worth confirming with your insurer beforehand, especially if your provider orders tests that go beyond standard preventive care.
If a new issue comes up during the visit and your provider addresses it, that portion of the appointment may be billed as a diagnostic visit rather than preventive care. This is the most common reason people are surprised by a bill after what they expected to be a free check-up.
Why It Matters Even When You Feel Fine
Many of the conditions a check-up screens for, including high blood pressure, high cholesterol, prediabetes, and certain cancers, produce no symptoms in their early stages. By the time you notice something is wrong, the condition may be harder to treat. Regular check-ups create a baseline for your health so your provider can spot changes over time. A blood pressure reading of 130/85 means something different if last year you were at 118/75 than if you’ve always run a little higher.
The visit also builds a relationship with a provider who knows your history. When something does go wrong, you have someone who can put it in context rather than starting from scratch.