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March 3, 2026An internist, or internal medicine physician, is a medical doctor who diagnoses, treats, and prevents diseases in adults. They often serve as primary care providers, managing common illnesses and complex conditions for their patients. A key diagnostic tool they use is blood work, which involves analyzing a blood sample to evaluate overall health. Blood testing can detect many potential health issues, from organ function to the presence of disease markers. Understanding when and why you might need this testing is a fundamental part of managing your health. Here’s information on how often to get blood work done:
Health Screenings
A health screening is a proactive approach to medical care that helps detect potential health problems before they become noticeable. These screenings may include physical examinations, imaging tests, and laboratory work. The frequency of health screenings depends on several factors, and your doctor will recommend a schedule tailored to your needs. Before recommending annual or biannual appointments, your internist will assess health factors like:
- Age
- Personal Risk Factors
- Medical History
Blood work tests are a common component of health screenings, but they are usually not required every single time. For a routine annual physical, your internist might recommend a panel of blood tests to establish a baseline or monitor existing conditions. For other specific screenings, a physical exam or a different type of test might be more appropriate. Your physician will determine which tests are necessary based on your personal health profile.
Preventive Care Services
Preventive care services encompass regular check-ups, recommended screenings, and lifestyle counseling. They focus on maintaining your well-being and stopping health issues early. Preventive care encourages a forward-thinking approach to long-term health, and it helps you and your doctor make informed decisions together.
What Preventive Screenings Are
Preventive screenings are specific tests performed to find diseases early, often when they are most treatable. These include routine blood work and may also include mammograms for breast cancer, colonoscopies for colorectal cancer, and bone density scans for osteoporosis. Your internist uses established guidelines based on age and risk factors to recommend which preventive screenings are right for you.
When To Visit a Specialist
While an internist manages a broad spectrum of health concerns, there are situations where seeing them before your scheduled annual appointment is appropriate. If you develop new, specific symptoms, like persistent joint pain, a concerning skin lesion, or chronic digestive issues, your internist may refer you to a specialist for evaluation. You shouldn’t wait to address pressing health changes, so always consult your primary care provider if you have new concerns.
Blood Work Testing
The process of getting blood work is typically straightforward. A phlebotomist, a technician trained in drawing blood, will first clean an area on your arm with an antiseptic wipe. They will then tie an elastic band around your upper arm to make the veins more visible. Using a sterile needle, the phlebotomist will draw a small amount of blood into one or more vials. You may feel a brief pinch, but the procedure is usually quick.
After the needle is removed, a cotton ball and bandage are applied to the site to stop any bleeding. The collected samples are then sent to a laboratory for analysis, and your doctor will receive a report with the results to discuss with you. Your provider will recommend any other screenings that may be needed at this time.
Contact an Internist Today
Regular blood work and preventive screenings are fundamental to maintaining health, and an internist can determine which screenings you need. For personalized guidance based on your health history and risk factors, contact an internist to schedule a consultation. An internal medicine physician can help you create a comprehensive health management plan.




