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Updated: Dec 12, 2025

FISH for Pre-implantation Genetic Diagnosis
Published on: February 23, 2011
Ethical questions concerning newborn genetic screening
Montserrat Esquerda1, Francesc Palau2,3, David Lorenzo4
1Institut Borja de Bioètica (Universitat Ramon LIuII); Universitat de Lleida - Facultat de Medicina, Barcelona, Spain.
Insights
Newborn screening identifies diseases in infants for early treatment. Emerging genetic screening technologies raise new ethical considerations alongside established public health criteria.
Area of Science:
- Public Health
- Genetics
- Bioethics
Background:
- Newborn screening is a vital public health initiative to detect diseases early in infants, enabling timely intervention before symptoms manifest.
- The inclusion of diseases in screening programs involves medical, public health, and economic factors, requiring well-understood disease natural history and effective early treatments.
- Current screening relies on biochemical markers, but advancements in technology now enable genetic screening, introducing new possibilities and challenges.
Purpose of the Study:
- To evaluate the criteria for including diseases in newborn screening programs.
- To explore the implications of new genetic screening technologies in the context of newborn screening.
- To identify and discuss the ethical challenges associated with neonatal screening.
Main Methods:
- Literature review and analysis of established criteria for newborn screening.
- Examination of the technical feasibility and public health impact of genetic screening in newborns.
- Identification and discussion of key ethical concerns related to neonatal screening.
Main Results:
- Established criteria for newborn screening include disease significance, known natural history, test availability, effective early treatment, and robust healthcare systems.
- Genetic screening offers new potential but also presents technical hurdles.
- Six major ethical concerns were identified: illness type, overdiagnosis/overtreatment, informed consent, data confidentiality, and justice/legal regulation.
Conclusions:
- Newborn screening decisions require a multidisciplinary approach, balancing public health needs with economic considerations.
- The advent of genetic screening necessitates careful consideration of its ethical dimensions.
- Addressing the identified ethical issues is crucial for the responsible implementation of advanced neonatal screening programs.
Abstract:
Newborn screening is a public health strategy used to identify certain diseases in the first days of life and, therefore, facilitate early treatment before the onset of symptoms. The decision of which diseases should be included in a screening goes beyond the medical perspective, including reasons for public health and health economics. There are a number of characteristics to include a disease in the screening, such as that the disorder must be a significant health problem, the natural history of the disease must be well known, a feasible and accurate test must be available, there must be a treatment that is most effective when applied before the onset of clinical symptoms and a health system must be in place that is capable of performing the procedure and subsequent monitoring. Currently, newborn screening programs are currently based on the use of biochemical markers that detect metabolites, hormones or proteins, but recently, the availability of new technology has allowed the possibility of a genetic screening. In addition to technical problems, the possibility of neonatal screening also presents a number of ethical problems. We identified and discussed six areas of particular concern: type of illness, overdiagnosis or overtreatment, information management and informed consent, data confidentiality and protection, justice and legal regulation.
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