by: Dr. Paul Chang, General Practitioner, Regis Medical
Last updated: December 3, 2025

Your 30s are often a transitional decade, you’re busier, juggling career growth, family responsibilities, and lifestyle demands. While you may still feel young and healthy, this is exactly why preventive care matters most. Many chronic conditions begin developing quietly during this period, long before symptoms appear.
The statistics below show why prioritising preventive health in your 30s can help build a healthier foundation for the decades ahead.
Why these matter for screening in 30s: As people age into their 30s, metabolic risk factors (cholesterol, obesity) climb significantly, making routine screening for lipid profile, BMI/waist circumference, and possibly early diabetes/insulin resistance more important.
Also, although less local data is publicly summarised about early-onset cancers by age 30–39, global trends suggest a rise of “early-onset” cancers in under-50s, especially digestive, colon, kidney, liver cancers. This underscores the value of preventive lifestyle measures and possibly age-appropriate cancer risk screenings (family history depending).
Even if you exercise regularly and eat well, certain risks naturally increase as you age. This decade is when early signs of:
… may begin to surface.
Identifying these early means easier treatment, fewer complications, and better longterm health outcomes.
Source: Health Promotion Board

A baseline blood panel is one of the best tools to assess your internal health.
Why it's important: Many adults in Singapore develop mild anaemia due to diet, stress, or lifestyle habits without realising.
Why it's important: High cholesterol can develop even in people who are slim or active, often due to genetics or diet.
Diabetes Tests (Fasting Glucose / HbA1c)
Screens for prediabetes and diabetes.
Why it matters: Diabetes often begins silently in the 30s, especially with sedentary jobs, stress eating, frequent snacking and irregular meals.
Assesses enzymes, bilirubin and liver health.
Checks creatinine, eGFR, and electrolyte balance.
Kidney issues usually show no symptoms until very late stages, early detection is key.
Important for:
Thyroid issues are especially common in women in their 30s.
Blood Pressure Screening
High blood pressure is a silent disease, many only discover it in their 30s.
ECG (Electrocardiogram)
Recommended if you:
BMI and Body Fat Analysis
Your 30s are when metabolism slows and body fat increases faster.
Nutritional and Lifestyle Assessment
Includes evaluation of:
These help identify risks for early metabolic syndrome or obesityrelated conditions.
For Women's Health Screenings
Recommended every 3 years (or more frequently if advised).
Screens for cervical cancer and precancerous changes.
Pelvic Ultrasound (Optional)
Useful for:
Breast Screening
Self exams monthly
Ultrasound recommended if you notice lumps, pain or have family history.
For Men
Testicular Health Check
Self exams + GP assessment for:
STD / STI Tests Recommended if you are sexually active.
Tests include:
Early detection ensures timely treatment and reduces transmission risk.
While routine cancer screening ramps up after 40, some individuals should start earlier depending on:
Common early screenings include:
Urine FEME
Screens for:
Stool Occult Blood Test
Your 30s are a good time to update:
Mental wellness is as important as physical health.
Speak to your GP if you experience:
Early support improves overall wellbeing and long term productivity.
Urea Breath Test (UBT) – For Detecting Helicobacter pylori (H. pylori)
The Urea Breath Test is a highly accurate, non-invasive test used to detect H. pylori, a common bacteria that can infect the stomach lining.
H. pylori infection is associated with:
Who Should Consider It
Gut Microbiome Test - Understanding Your Digestive and Immune Health
A gut microbiome analysis examines the population of bacteria, fungi, and microorganisms living in your digestive tract.
Using advanced sequencing techniques, this test measures:
Your gut microbiome influences:
Who Should Consider It
IgG Food Intolerance Test – Identifying Delayed Food Sensitivities
Unlike food allergies (immediate reactions), IgG food intolerance involves a delayed immune response, often appearing hours or days after eating certain foods.
The test measures your body’s IgG antibody levels to a wide variety of foods, commonly dairy, eggs, wheat, soy, nuts, shellfish, gluten-containing grains, and more.
Food intolerances often cause subtle, chronic symptoms such as:
Because delayed reactions are hard to link to specific foods, the IgG test provides objective data to guide an elimination or rotation diet.
Who Should Consider It
This test helps reduce inflammation and improve daily wellbeing by identifying problem foods.
Cortisol Level Test – Assessing Stress & Adrenal Function
Cortisol is your body’s primary stress hormone, produced by the adrenal glands. It follows a daily rhythm: highest in the morning, lowest at night.
This test measures:
Abnormal cortisol levels can contribute to:
Chronically high cortisol (due to prolonged stress) may increase the risk of heart disease, diabetes, and burnout. Very low cortisol could signal adrenal insufficiency.
Who Should Consider It
A cortisol test provides important information for personalised lifestyle, sleep, and stress-management plans.
Health risks start rising in your 30s as metabolism slows and stress levels increase. Regular screening helps detect early signs of diabetes, thyroid imbalance, high cholesterol, and fertility-related issues before symptoms appear.
Your 30s are the decade to catch health issues early, build strong foundations, and prevent chronic diseases before they take hold. With regular screenings, early action, and personalised guidance from your GP, you can stay healthy, energetic and resilient for many years ahead.