Browse Health Conditions
50 conditions and symptoms with recommended lab tests. Find the right tests for your health concerns.
Anxiety and Depression: Lab Tests Worth Considering
Lab tests can help identify underlying physical causes of anxiety and depression, such as thyroid problems, nutrient deficiencies, and hormonal imbalances that may be contributing to symptoms.
Brain Fog: Medical Causes and Lab Tests
Brain fog is a common cognitive symptom affecting focus, memory, and mental clarity that may indicate underlying medical conditions treatable through targeted lab testing.
Celiac Disease
An autoimmune disorder where consuming gluten damages the small intestine, affecting 1% of people and often going undiagnosed for years.
Chlamydia: Symptoms, Risks, and Testing
Chlamydia is the most commonly reported sexually transmitted infection in the U.S., often causing no symptoms but potentially leading to serious reproductive health complications if left untreated.
Chronic Fatigue: Could It Be Something Medical?
Chronic fatigue that persists for weeks or months may signal an underlying medical condition that can often be identified through targeted lab testing.
Common STD Symptoms and When to Get Tested
Many sexually transmitted infections cause no symptoms initially, making regular testing essential for anyone who is sexually active.
Erectile Dysfunction
Erectile dysfunction is the persistent difficulty achieving or maintaining an erection sufficient for sexual activity, affecting approximately 18% of men in the U.S.
Estrogen Imbalance in Women
Estrogen imbalance can cause irregular periods, mood changes, weight fluctuations, and other symptoms that may affect a woman's reproductive health and overall well-being.
Female Infertility: Understanding Testing Options
Female infertility affects approximately 10-15% of women of reproductive age and can result from various hormonal, structural, or unexplained causes that affect the ability to conceive or carry a pregnancy to term.
Food Allergies and Intolerances
Food allergies and intolerances can cause uncomfortable or serious reactions after eating certain foods, but diagnostic lab testing can help identify triggers.
Frequent Infections
Experiencing repeated infections may signal an underlying immune system issue or other health condition that can often be evaluated through simple blood tests.
Gout
Gout is a form of inflammatory arthritis caused by high uric acid levels that form painful crystals in joints, most commonly affecting the big toe.
Hair Loss: Possible Medical Causes
Hair loss affects millions of people and can result from various medical conditions including thyroid disorders, iron deficiency, hormone imbalances, and nutritional deficiencies.
Hashimoto's Thyroiditis
An autoimmune condition where the immune system attacks the thyroid gland, often leading to hypothyroidism and related symptoms like fatigue, weight gain, and brain fog.
Heart Disease Risk Factors and Screening
Heart disease affects millions of adults and can be assessed through key biomarkers like cholesterol, inflammation markers, and blood sugar levels.
Hepatitis B
A viral liver infection that can become chronic and lead to serious complications. Testing and early detection are important for proper management and preventing transmission.
Hepatitis C: Who Should Get Tested
Hepatitis C is a viral infection that often causes no symptoms initially but can lead to serious liver damage. Testing helps identify infection early when treatment is most effective.
Herpes (HSV-1 & HSV-2)
Herpes is a common viral infection caused by two types of herpes simplex viruses that can affect the mouth or genitals.
High Blood Pressure: Lab Tests That Help
Laboratory tests can help evaluate cardiovascular risk, identify underlying causes of high blood pressure, and assess potential organ damage.
High Cholesterol
High cholesterol is when you have too much cholesterol in your blood. It can increase your risk of having a heart attack or stroke.
High Cortisol and Chronic Stress
High cortisol levels from chronic stress can impact your physical and mental health, causing symptoms like weight gain, sleep problems, and mood changes.
HIV Testing: When, Why, and How
Understanding HIV testing options, timing, and what results mean can help individuals make informed decisions about their health and protection strategies.
Hyperthyroidism (Overactive Thyroid)
Hyperthyroidism occurs when the thyroid gland produces excessive amounts of thyroid hormones, causing symptoms like rapid heartbeat, weight loss, and anxiety.
Hypothyroidism (Underactive Thyroid)
Hypothyroidism occurs when the thyroid gland doesn't produce enough thyroid hormones, affecting metabolism and energy levels throughout the body.
Insulin Resistance: The Silent Precursor to Diabetes
Insulin resistance occurs when cells become less responsive to insulin, potentially leading to prediabetes and type 2 diabetes if left unmanaged.
Iron Deficiency and Anemia
Iron deficiency anemia is the most common type of anemia worldwide, causing tiredness and shortness of breath when the body lacks adequate iron to produce healthy red blood cells.
Joint Pain and Inflammation
Joint pain and inflammation can signal various conditions from arthritis to autoimmune disorders, and specific lab tests help identify the underlying cause.
Kidney Disease: Risk Factors and Screening
Chronic kidney disease affects over 35 million Americans, but many don't know they have it. Early screening and detection can help prevent progression and protect kidney health.
Lead Exposure: Risk Factors and Testing
Lead exposure can cause serious health problems affecting the brain, nervous system, and organs, with symptoms often appearing gradually or remaining undetected.
Low Libido in Men: Is It Hormonal?
When men experience a persistent decline in sexual desire, hormonal imbalances may be the underlying cause.
Low Libido in Women: Hormonal Causes
Decreased sexual desire in women can often be linked to hormonal changes including low estrogen, testosterone, thyroid dysfunction, or elevated prolactin and cortisol levels.
Low Testosterone in Men
Low testosterone affects up to 40% of men over 45, causing fatigue, decreased sex drive, mood changes, and other symptoms that can impact quality of life.
Lupus (SLE) - Systemic Lupus Erythematosus
Lupus is an autoimmune disease where the immune system attacks healthy tissues, causing widespread inflammation throughout the body.
Lyme Disease
A tick-borne bacterial infection that progresses through three stages if untreated, causing symptoms ranging from characteristic rash and flu-like illness to severe neurological and joint complications.
Male Infertility: Hormones and Testing
Male infertility affects about 50% of couples struggling to conceive, often involving hormonal imbalances that can be identified through targeted lab testing.
Menopause and Perimenopause: Hormone Testing
Understanding hormonal changes during the menopause transition and finding the right tests to evaluate symptoms and plan for health.
Muscle Weakness and Fatigue
Persistent feelings of muscle weakness combined with unusual tiredness that can range from mild discomfort to significantly impacting daily activities.
Ovarian Cancer Screening: CA-125 and Beyond
Understanding the role of CA-125 testing and other blood markers in detecting ovarian cancer, plus when screening may be appropriate for high-risk women.
PCOS (Polycystic Ovary Syndrome)
A common hormonal condition affecting reproductive-aged women, causing irregular periods, excess male hormones, and potential fertility challenges.
Prediabetes and Diabetes Risk
A condition where blood sugar levels are higher than normal but not yet diabetic, affecting more than 2 in 5 adults.
Prostate Health: PSA Screening and What It Means
Understanding PSA levels and prostate health concerns, including enlarged prostate and cancer screening recommendations for men over 40.
Rheumatoid Arthritis Testing
Rheumatoid arthritis is an autoimmune condition causing joint pain, stiffness, and swelling. Early diagnosis through lab testing can help guide treatment decisions.
Seasonal and Environmental Allergies
Seasonal allergies, also called allergic rhinitis or hay fever, affect millions of people when their immune systems overreact to environmental triggers like pollen, mold, or dust.
Signs of Liver Problems
Early signs of liver problems can include fatigue, abdominal discomfort, yellowing of skin or eyes, and changes in urine or stool color. Understanding these symptoms can help identify liver issues before they become serious.
Signs of Thyroid Problems
Thyroid problems can cause a wide range of symptoms affecting metabolism, energy, mood, and overall well-being, from unexplained weight changes to persistent fatigue.
Unexplained Weight Gain
Gaining weight without changes to diet or exercise can signal hormonal imbalances or other underlying health conditions that lab testing can help identify.
Unexplained Weight Loss
Significant weight loss without intentional diet or exercise changes can signal underlying health conditions that may require medical evaluation and testing.
Vitamin B12 Deficiency
Vitamin B12 deficiency can cause fatigue, anemia, nerve problems, and cognitive issues when the body lacks this essential vitamin needed for red blood cells and nerve function.
Vitamin D Deficiency
Vitamin D deficiency is a common nutritional condition that can affect bone health, immune function, and overall well-being, often developing without obvious symptoms.
What to Know Before a Drug Test
Understanding drug test types, detection windows, privacy protections, and how to prepare can reduce anxiety and help you approach testing with confidence.