Modern medicine increasingly uses individual health information to guide prevention, diagnosis and treatment.

Rather than applying identical approaches to every patient, doctors consider medical history, genetic characteristics, diagnostic findings and lifestyle factors to determine suitable care.

This approach, known as precision medicine, aims to make clinical decisions more specific to individual needs.

During consultations, healthcare professionals assess symptoms, review medical records and consider previous treatments before recommending an appropriate care plan. Patients can also discuss their preferences and participate in treatment decisions.

<h3>How Precision Medicine Works</h3>

Doctors combine several types of information to understand a patient's condition and identify suitable medical options. These may include:

- Medical history: Previous illnesses, existing conditions, medications and family health patterns.

- Diagnostic testing: Laboratory investigations and medical imaging used to assess specific health conditions.

- Genetic testing: Inherited variations that may influence disease susceptibility or responses to certain medicines.

- Biomarker analysis: Biological indicators that help identify particular diseases and guide treatment selection.

Together, these assessments provide a broader understanding of a patient's clinical needs.

<h3>Advances in Precision Healthcare</h3>

Genomics, molecular diagnostics and digital health technologies are expanding the applications of precision medicine. They enable researchers and healthcare professionals to examine disease characteristics in greater detail and identify potential treatment targets.

The World Health Organization describes this approach as follows: “Precision medicine refers to the use of clinical, molecular, genomic and other health data to inform prevention, diagnosis and treatment, taking into account variability while applying appropriate ethical and legal safeguards.”

This approach connects scientific discoveries with practical healthcare applications, supporting more informed clinical assessments.

<h3>Singapore's Progress in Personalized Medicine</h3>

Singapore is advancing genomic research through its national precision medicine programme, which aims to translate genetic discoveries into practical healthcare applications.

Familial hypercholesterolemia illustrates the value of this research. This inherited condition causes elevated cholesterol levels and increases the risk of cardiovascular disease. Genetic testing can identify affected individuals, allowing earlier clinical assessment, appropriate monitoring and timely treatment.

The programme's third phase aims to sequence the entire genomes of approximately 10% of Singapore's resident population. Its longer-term objective is to incorporate relevant genomic information into lifelong healthcare records.

<h3>The Role of Doctors in Precision Medicine</h3>

Doctors remain central to interpreting genetic findings and diagnostic results. They assess these findings alongside symptoms, medical history and other clinical evidence before recommending treatment.

Patients also need clear explanations of investigation results, available treatments and expected outcomes. Open communication supports informed choices and helps align care with individual preferences.

<h3>The Future of Precision Medicine</h3>

Advances in genomic research and diagnostic technology are creating new opportunities to improve disease detection and treatment selection. Their integration into clinical practice may support more targeted care across a wider range of medical specialties.

Continued research, responsible health information management and collaboration between patients and healthcare professionals will help shape the future of precision medicine.