Which Blood Test Do I Need?
Describe your symptoms and our AI instantly recommends the most relevant clinical lab tests — ranked by priority, with clear explanations. Free, no sign-up.
Fatigue · Hair loss · Joint pain · Diabetes · Thyroid · PCOS · Heart health · Vitamin deficiency & more
Important:This tool provides educational guidance only — it is not a diagnosis and does not replace a doctor's assessment. Always consult a qualified healthcare provider before ordering or acting on any lab tests.
Describe Your Symptoms
Browse by Health Concern
Not sure what to type? Pick the category that matches your concern and use the symptom chips above.
Fatigue & Low Energy
Typical tests: CBC · TSH · Ferritin · Vitamin D · B12 · HbA1c
Hair Loss & Thinning
Typical tests: Ferritin · TSH · Vitamin D · B12 · Testosterone · Prolactin
Unexplained Weight Gain
Typical tests: TSH · Fasting Insulin · Cortisol · Testosterone · HbA1c
Diabetes & Blood Sugar
Typical tests: HbA1c · Fasting Glucose · Kidney Function · Lipid Panel
Joint Pain & Arthritis
Typical tests: CRP · ESR · Uric Acid · RF · Anti-CCP · ANA
Hormones & PCOS (Women)
Typical tests: LH · FSH · Testosterone · AMH · Prolactin · Insulin
Heart & Chest Pain
Typical tests: Troponin · Lipid Panel · hs-CRP · BNP · HbA1c
Anxiety, Depression & Mood
Typical tests: TSH · Vitamin D · B12 · Cortisol · Testosterone · Ferritin
Liver & Digestive Issues
Typical tests: LFT · GGT · Bilirubin · Albumin · Amylase · Lipase
Frequent Infections & Immunity
Typical tests: CBC · Immunoglobulins (IgG, IgM) · Vitamin D · Zinc · CRP
Numbness & Nerve Symptoms
Typical tests: Vitamin B12 · Folate · Fasting Glucose · HbA1c · TSH
Kidney & Urinary Issues
Typical tests: Creatinine · eGFR · BUN · Urine ACR · Electrolytes
How It Works
Describe your symptoms
Type your symptoms in plain English or tap the quick-select chips. Add age and sex for more accurate recommendations.
AI analyses your pattern
Our AI matches your symptom pattern to clinical guidelines and identifies the most relevant diagnostic tests.
Get prioritised results
Tests are ranked Essential, Recommended, or Optional — each with a clear explanation of why it's relevant.
Interpret your results
Once you have your lab results, use our free interpreter to understand every value in plain English or Urdu.
Common Symptom Patterns & Recommended Tests
Real-world examples of how symptoms map to blood tests
🔍 "Fatigue, hair loss, weight gain, cold all the time"
Likely tests: TSH, Free T4, Ferritin, CBC, Vitamin D
🔍 "Excessive thirst, frequent urination, blurred vision"
Likely tests: Fasting Glucose, HbA1c, Kidney Function
🔍 "Joint pain, morning stiffness, fatigue"
Likely tests: CRP, ESR, Uric Acid, Rheumatoid Factor, ANA
🔍 "Shortness of breath, pale skin, tiredness"
Likely tests: CBC, Haemoglobin, Ferritin, B12, Folate
🔍 "Irregular periods, acne, weight gain (women)"
Likely tests: Testosterone, LH, FSH, AMH, Insulin, Prolactin
🔍 "Anxiety, low mood, brain fog, poor sleep"
Likely tests: TSH, Vitamin D, B12, Cortisol, Testosterone
🔍 "Nausea, yellow skin, abdominal pain, dark urine"
Likely tests: LFT (Liver Function Tests), Bilirubin, GGT
🔍 "Chest pain, shortness of breath, palpitations"
Likely tests: Troponin, BNP, Lipid Panel, hs-CRP, ECG
Frequently Asked Questions
Which blood test should I get for fatigue and tiredness?▼
Fatigue has many causes. The most useful tests are: CBC (checks for anaemia), Ferritin (iron stores — a common and often-missed cause), TSH (thyroid — both underactive and overactive thyroid cause fatigue), Vitamin D, Vitamin B12, and HbA1c or Fasting Glucose (to rule out diabetes). Use the advisor above to get a recommendation based on your specific symptom pattern.
What blood test should I get for hair loss?▼
Hair loss is commonly linked to: low Ferritin (iron stores), thyroid dysfunction (TSH, Free T4), Vitamin D deficiency, Vitamin B12 deficiency, and hormonal imbalances such as elevated Testosterone, DHEA-S, or low Prolactin in women. Enter your symptoms above for a personalised list.
What blood test to check for diabetes?▼
The main tests are HbA1c (shows your 3-month average blood sugar — no fasting needed), Fasting Blood Glucose (requires 8–12 hour fast), and Random Blood Glucose. If you have symptoms like frequent urination, excessive thirst, or blurred vision, these should be your first tests.
Which blood test for joint pain and swelling?▼
For joint pain and inflammation, doctors typically check CRP and ESR (inflammation markers), Rheumatoid Factor (RF) and Anti-CCP (for rheumatoid arthritis), ANA (for lupus and other autoimmune conditions), and Uric Acid (for gout). The right panel depends on your symptom pattern — single joint vs. multiple joints, morning stiffness duration, etc.
What blood test for PCOS and hormonal acne in women?▼
Key tests for suspected PCOS: Total and Free Testosterone, DHEA-S, LH and FSH (with LH:FSH ratio), Prolactin, AMH (Anti-Müllerian Hormone), Fasting Insulin and Glucose (for insulin resistance), and TSH. These identify the hormonal pattern driving symptoms like irregular periods, acne, and excess hair growth.
What blood tests for anxiety and depression?▼
While blood tests cannot diagnose depression or anxiety, deficiencies that mimic or worsen these conditions include: low Vitamin D, low Vitamin B12, thyroid disorders (TSH), low iron (Ferritin), and hormonal imbalances (Testosterone, Oestrogen, Cortisol). Ruling these out is an important first step before psychiatric evaluation.
Can I use this to order my own tests?▼
In some countries (US, UK, Australia) you can order certain lab tests without a GP referral through private labs. However, we always recommend discussing with your doctor first so they can guide you on the most appropriate tests and help interpret the results in context.
Is this tool a diagnosis?▼
No. The Lab Test Advisor is an educational tool that recommends which tests may be relevant to your symptoms. It does not diagnose any condition. A doctor must order tests, interpret results, and make clinical decisions based on your full medical history.
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