There are different types of diagnostic or screening tests that can help you detect major illnesses early, such as cancer, diabetes, heart disease, and more. Some of the common tests are:

• Blood tests: These are tests that measure the levels of certain substances in your blood, such as glucose, cholesterol, hemoglobin, and antibodies. Blood tests can help diagnose conditions such as diabetes, anemia, infections, and autoimmune diseases
• Imaging tests: These are tests that use various technologies to create pictures of the inside of your body, such as X-rays, ultrasound, CT scans, MRI scans, and PET scans. Imaging tests can help detect abnormalities such as tumors, fractures, blockages, and infections
• Biopsy: This is a test that involves taking a small sample of tissue from a suspicious area and examining it under a microscope. Biopsy can help confirm or rule out the presence of cancer or other diseases
• Endoscopy: This is a test that involves inserting a thin, flexible tube with a camera and a light into a body cavity or organ, such as the stomach, colon, or lungs. Endoscopy can help visualize and treat problems such as ulcers, polyps, bleeding, and inflammation
• Pap test: This is a test that involves scraping some cells from the cervix and examining them for signs of cervical cancer or precancerous changes. Pap test can help prevent cervical cancer by detecting and treating abnormal cells early
• Mammogram: This is a test that uses low-dose X-rays to create images of the breast tissue. Mammogram can help detect breast cancer or other breast problems at an early stage
• Colonoscopy: This is a test that involves inserting a long, flexible tube with a camera and a light into the rectum and colon. Colonoscopy can help detect and remove polyps that may develop into colorectal cancer

These are some examples of diagnostic or screening tests that can help you detect major illnesses early. However, the type, frequency, and timing of these tests may vary depending on your age, health history, risk factors, and symptoms. Therefore, it is important to consult your healthcare provider about the appropriate tests for you.

Screening vs. diagnostic testing: what’s the difference?

John Hopkins Medicine: Screening Tests for Common Diseases

Medifee Healthcare: 10 Most Common Diagnostic Tests You Must Know About