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What is WES?

Whole Exome Sequencing (WES) is an advanced genetic analysis method that examines the regions responsible for protein production in about 22,000 genes in the human body.

Today, many hereditary diseases are caused by genetic changes located in these regions. Instead of examining genes one by one, WES analyzes thousands of genes at the same time to investigate the genetic cause of the disease and can speed up the diagnostic process.

How Is the Test Performed?

A small blood sample is usually sufficient for the WES test. DNA is isolated in the laboratory and analyzed with advanced Next-Generation Sequencing (NGS) technology. The data obtained are evaluated in detail not only by computer but also by experienced clinical geneticists. In this way, not only are genetic changes detected, but their relationship with the patient's clinical findings is also carefully interpreted.
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Advantages of the WES Test


  • ✓ Simultaneous examination of about 22,000 genes

  • ✓ Comprehensive analysis for many rare genetic diseases

  • ✓ Contributes to speeding up the diagnostic process

  • ✓ Helps reduce unnecessary additional tests

  • ✓ Supports the creation of personalized treatment and follow-up plans

  • ✓ Provides genetic data that can be re-evaluated in the future when needed

How Long Do the Results Take?

The result of the WES analysis is usually prepared within about 4 weeks. When necessary, a detailed genetic evaluation and clinical interpretation by the specialist team are added to the report.

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Why Wellcare Laboratories?

Wellcare Laboratories performs WES analyses in collaboration with Eurofins Biomnis France.
To our patients we offer:

  • ✓ Analysis in line with ISO 15189 accreditation standards

  • ✓ Next-Generation Sequencing (NGS) technology

  • ✓ Results interpreted by experienced clinical geneticists

  • ✓ Reliable reporting in line with international quality standards

  • ✓ Secure digital data management


and in this way we aim to provide genetic diagnostic services at the highest quality standards.

Does WES Have Limitations?

Does WES Have Limitations?

Although WES is one of the most comprehensive genetic tests used today, it may not detect every genetic disease. Some genetic changes may not be detected with this method, or the clinical significance of some findings may not yet be fully known due to current scientific knowledge. WES cannot detect repeat expansions and some large deletions; MLPA, repeat analysis or microarray may be needed. Therefore, the results should always be evaluated together with the patient's clinical findings, family history and other laboratory results.
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