Continuous Glucose Monitoring (CGM) Singapore

The cost of continuous glucose monitoring devices in Singapore varies depending on the model and replacement schedule. Some systems, such as Dexcom for type 1 diabetes, may be subsidised at public healthcare institutions. At healthscreening.sg, we provide the Abbott FreeStyle Libre sensor from $27.25 for first-time users, and our doctors can provide ongoing support for diabetes care and long-term management.

Some continuous glucose monitoring devices, such as Dexcom, can be purchased from authorised providers or pharmacies in Singapore without a prescription. While they can be used independently, integrating CGM into your diabetes care under a doctor's supervision allows for more accurate interpretation of readings and more medically guided management of your condition. At healthscreening.sg, the Abbott FreeStyle Libre sensor is available from $27.25 for first-time users.

Inserting a CGM sensor usually causes only mild, brief discomfort similar to a small pinch, as the device sits just under the skin. Modern applicators are designed for quick and simple placement, and most users find the process tolerable after initial use. Minor skin irritation may occur at the insertion site but typically resolves quickly. If discomfort persists, it is best to consult your doctor for guidance.

Continuous glucose monitors are widely recognised as useful tools for tracking glucose trends and supporting diabetes management. They measure glucose levels in the interstitial fluid, providing real-time data that helps identify patterns and fluctuations. However, finger-prick tests may still be needed during rapid changes or to confirm readings. The accuracy of CGM systems depends on proper use and calibration, where required.

While CGM systems reduce the need for frequent finger-prick testing, they do not completely eliminate it. Finger-prick tests may still be necessary in certain situations, such as confirming rapidly changing readings or calibrating specific devices. Continuous glucose monitoring provides ongoing insights, but blood glucose testing remains an important reference for accuracy and treatment decisions. Always follow your doctor's recommendations on monitoring methods.

The main drawbacks of CGM systems include cost, the need for regular sensor replacement, and occasional skin irritation at the insertion site. Readings can also lag slightly behind actual blood glucose levels during rapid changes, such as after eating or exercising. Despite these limitations, many users find CGM valuable for maintaining better glucose control, particularly when used with regular medical review and support.

An Apple Watch cannot directly measure blood sugar levels, as it lacks a glucose sensor. However, it can display glucose data from compatible continuous glucose monitoring systems, such as Dexcom or FreeStyle Libre, when paired via an app. This allows users to view readings, trends, and alerts conveniently on their wrist. Always ensure the connected CGM device is properly calibrated and used according to your doctor's guidance.

A continuous glucose monitor is not intended to diagnose prediabetes but can help observe glucose patterns once the condition has been identified. Prediabetes is typically confirmed through blood tests such as fasting glucose, HbA1c, or an oral glucose tolerance test. CGM can still offer helpful insights into how diet and physical activity affect glucose levels. If you suspect prediabetes or have risk factors, it is advisable to consult a doctor for proper screening.

Most continuous glucose monitoring sensors are water-resistant and can be worn while showering, swimming, or exercising. However, prolonged submersion or exposure to very hot water may affect adhesion or sensor performance. It is important to follow the manufacturer's care instructions for your specific device. If a sensor becomes loose or stops transmitting data after water exposure, consult your doctor or replace the sensor as advised.

The needle used during CGM sensor insertion does not stay in the body. It is only used to guide the tiny filament, or sensor wire, beneath the skin, after which the needle is withdrawn. The soft filament remains in place to measure glucose levels in the interstitial fluid. This design minimises discomfort during wear. If you experience persistent pain or irritation, it is advisable to consult your doctor.

In Singapore, continuous glucose monitoring devices such as Dexcom and FreeStyle Libre can be purchased from authorised providers or pharmacies without a prescription. While they can be used independently, starting CGM with medical guidance allows for correct setup and accurate interpretation of readings within a structured care plan. At healthscreening.sg, the Abbott FreeStyle Libre sensor is available from $27.25 for first-time users, supporting ongoing diabetes monitoring and management.

The lifespan of a continuous glucose monitoring sensor varies depending on the device. Most real-time CGM sensors, such as Dexcom, last about 10 days, while flash glucose monitoring sensors like FreeStyle Libre can last up to 14 days. After this period, the sensor must be replaced to maintain accuracy. Always follow the manufacturer's recommended replacement schedule and your doctor's instructions for optimal monitoring.