Blood work is one of the simplest yet most powerful tools for monitoring your health. Regular blood tests can detect silent health conditions like high cholesterol, diabetes, and thyroid disorders—sometimes before symptoms even appear. Early detection can make all the difference in managing or even preventing serious health problems.

But how often should you get blood work done? The answer depends on factors like age, medical history, and lifestyle. While most healthy adults should get blood work annually, those with risk factors or pre-existing conditions may need more frequent testing.

In this guide, we’ll cover everything you need to know about blood test frequency, common tests, and signs that you should get tested sooner. Let’s dive in.

Bloodwork is a common requirement for many new patients, as well as a main part of routine yearly checkups. The normal panel of blood tests is like a snapshot that your doctor can use to get a general picture of your overall health.

What are Blood Tests For?

The results of blood tests show many factors according to the test conducted. A glucose panel, for example, shows the amount of glucose in your blood after fasting. Other blood tests may identify the presence of a foreign body on a spectrum based on how much is considered “normal” to determine whether someone is positive or negative for a disease, a pregnancy, or even cancer.

Each blood test produces different results, and each should be interpreted by your doctor in the context of the norm as well as your past test results. Some commonly tested conditions in routine blood work include:

• Diabetes
• Cancer
• Anemia
• HIV 
• Coronary heart disease
• Liver function
• Kidney function

What are Signs You Need a Blood Test Sooner?

If you notice any of the following symptoms, you should consider getting a blood test immediately:

• Unexplained Fatigue or Weakness – Could indicate anemia, thyroid dysfunction, or a vitamin deficiency.
• Sudden Weight Gain or Loss – May be linked to diabetes or thyroid problems.
• Frequent Infections or Slow Healing Wounds – Could point to an immune system issue.
• Persistent Headaches or Dizziness – May be due to blood sugar imbalances or anemia.
• Skin Changes, Hair Loss, or Brittle Nails – Could be a sign of vitamin or mineral deficiencies.

Common Blood Tests & Their Purposes

Here are some of the most important blood tests and what they reveal:

Complete Blood Count (CBC)

• Checks for infections, anemia, and immune function.
• Evaluates red and white blood cell levels.

Basic Metabolic Panel (BMP)

• Measures kidney function, blood sugar, and electrolyte balance.
• Helps detect diabetes and kidney disease.

Lipid Panel

• Assesses cholesterol levels and heart disease risk.
• Essential for those with a family history of heart disease.

Hemoglobin A1C

• Measures blood sugar levels over the past 3 months.
• Used for diabetes diagnosis and management.

Thyroid Function Tests

• Determines if you have an underactive or overactive thyroid.
• Common for those experiencing fatigue, hair loss, or mood swings.

Vitamin & Mineral Levels

• Detects deficiencies in iron, vitamin D, B12, and magnesium.

Cardiac test: a cardiac test checks for biomarkers that indicate heart damage and functioning

STI test: an STI test examines your blood for the presence of a sexually transmitted infection

Why Is Regular Blood Work Important?

Regular blood work isn’t just a precaution—it’s a proactive step in managing your health. Here’s why getting routine tests is essential:

Detects Silent Health Issues: Many conditions, like high cholesterol, prediabetes, and thyroid disorders, don’t show obvious symptoms in the early stages. Blood tests can catch these issues before they develop into serious illnesses.

Helps Monitor Chronic Conditions: If you have diabetes, high blood pressure, or an autoimmune disease, blood work helps track progress and adjust treatments accordingly.

Guides Nutrition and Lifestyle Choices: Blood tests can reveal vitamin deficiencies, hormone imbalances, and hydration levels—helping you optimize your diet and fitness routine.

Ensures Medications Are Working: For those on long-term medications (like thyroid meds or cholesterol-lowering drugs), blood work ensures that dosages are correct and side effects are minimal.

How Often Should You Get Blood Work? (Based on Health & Age)

The recommended frequency of blood work varies based on your health status. Below is a breakdown:

If you experience symptoms like persistent fatigue, weight changes, or dizziness, consider getting blood work sooner.

Why Should I Get Bloodwork Done?

Testing for the markers of diseases is not the only reason to get bloodwork done. A blood test evaluates far more than your illness status.

In the CBC alone, doctors can see your white blood cell count, which is a clue to immune functioning, platelet count, which tells them if you might have a clotting problem, hemoglobin, which says a lot about your circulation, and more.

Every test in the battery of blood work performed on your sample contains valuable insight into your overall health, insight that your doctor can use to recommend further testing and treatment.

How Long Should I Wait?

The question of how long you should wait to get your bloodwork done varies depending on your condition and age. For example, if you have a history of thyroid or blood sugar problems, your doctor will recommend more frequent tests. Those who are young adults to middle age who have no history of these illnesses are usually recommended for bloodwork 1-2 times per year, regardless of any symptoms.

However, this changes as we get older as well. For example, a yearly glucose panel may be fine for a young adult, but for adults over 60, doctors may recommend them to be conducted more frequently to closely monitor their numbers.

Speak with your doctor about how often you should get your bloodwork done.

What Should I Do Before Routine Blood Work?

Your doctor will provide instructions for your blood work, but you can expect to take a few basic steps.

Stay Hydrated

Hydration increases blood volume and plumps up your veins to make the drawing process easier. It’s best to stick to only water for your hydration needs because alcohol and caffeinated beverages can dehydrate you. Dehydration may even skew test results, so keep a water bottle with you leading up to the appointment.

Eat a Healthy Meal

Getting your blood drawn can make you feel lightheaded if your body doesn’t have enough nutrients. Eating a healthy meal beforehand with plenty of protein can give your body the stability it needs when giving blood. It’s also best practice to avoid rich foods or anything high in fat. If you think giving blood might make you nauseous, make sure to eat your meal a couple of hours before your appointment — not right before. 

Fast if Required

While fasting may seem contrary to eating a healthy meal, it’s an essential step for cholesterol and glucose tests. Eating a meal can raise your cholesterol, triglyceride and blood sugar levels and prevent the test from offering an accurate reading. A doctor will typically require you to fast for at least eight hours before your test.

To make the fasting process easier, try to schedule your appointment in the early morning, so you complete your fasting while you sleep.

Communicate With Your Phlebotomist

Address this step right before your blood is drawn. Your phlebotomist should know exactly what to expect from you during the blood draw. Let them know if you may faint, experience nausea or need a clear warning before inserting the needle. It’s also essential to let your phlebotomist know if you’re on blood thinners. This way, they can ensure you’ve stopped bleeding before you leave the lab.

Blood Work Reimagined: Typical vs. Concierge Experience

While getting blood work done may be a typical experience, concierge medicine can transform the process beyond the standard. Rather than making phone calls and waiting for appointment times to handle your blood work, turn to concierge medical providers for these services the moment you need them.

With members-only medicine, you receive premium treatment from your healthcare providers. There are three key features of concierge medicine that set it apart from typical healthcare — convenience, immediacy and comfort.

Convenience

The traditional blood work experience is often inconvenient. Most physician offices only accept blood work from certain labs, making it more challenging to find appointments that work with your schedule or visit locations that are close to where you live. Once you’ve completed your blood work, you once again have to visit your doctor’s office. 

At Speedy Sticks, our concierge model makes scheduling your blood test easier than ever. Our care providers are available to you at any time, so you can check blood work off your to-do list as soon as possible. We have many state-of-the-art centers, and we can draw blood during an in-home visit as well. Once we’ve tested the blood, you can schedule a virtual visit with a care provider only a couple days after the draw.

Can I Get Blood Work Done Without a Doctor’s Order?

Yes, some direct-to-consumer labs offer blood testing without a doctor’s referral. However, it’s best to consult a healthcare provider for accurate interpretation.

How Long Do Blood Test Results Take?

Most standard tests are processed within 24-48 hours. Some specialized tests may take longer.

Do I Need to Fast Before a Blood Test?

Yes, certain tests—like glucose and cholesterol panels—require fasting for accurate results. Your doctor will let you know if fasting is necessary.

How Much Does Routine Blood Work Cost?

Costs vary depending on location and insurance coverage. At-home blood draw services like Speedy Sticks provide convenient and affordable options.

Conclusion 

Routine blood work is an essential part of maintaining good health. Whether you’re monitoring a condition, tracking vitamin levels, or just ensuring everything is functioning properly, regular testing can help catch issues early.

Don’t wait for symptoms to appear—be proactive about your health. Schedule your at-home blood test with Speedy Sticks today for fast, professional, and convenient testing.