What is loss of genetic affinity?

Loss of genetic affinity refers to the disappointed expectation of having a child genetically related to both intended parents, recognised in ACB v Thomson Medical as a distinct head of damage where medical negligence causes fertilisation with the wrong genetic material.

Can parents recover the cost of raising a child in a wrongful conception case in Singapore?

No. The Court of Appeal in ACB v Thomson Medical affirmed that the costs of raising a healthy child are not recoverable, applying the sanctity of life principle and public policy considerations that a child is a blessing, not a financial burden.

Why is ACB v Thomson Medical significant for Singapore tort law?

The case is significant because it recognised a novel head of damage—loss of genetic affinity—demonstrating judicial willingness to adapt tort principles to reproductive technologies and acknowledging dignitary harms in medical negligence beyond traditional physical or psychiatric injury.

Court of Appeal· 2017landmark

ACB v Thomson Medical Pte Ltd

[2017] 1 SLR 918· [2017] SGCA 20

Tort

Loss of genetic affinity recognised as actionable damage in IVF mix-up.

At a glance

ACB v Thomson Medical Pte Ltd is a landmark Court of Appeal decision recognising 'loss of genetic affinity' as a novel head of damage where an IVF clinic's negligence resulted in the claimant being implanted with a stranger's sperm instead of her husband's. The case is significant for expanding the scope of recoverable non-pecuniary loss in medical negligence and wrongful conception cases.

Material facts

The claimant underwent IVF treatment at Thomson Medical but due to the clinic's negligence, her eggs were fertilised with a stranger's sperm rather than her husband's. She gave birth to a healthy child but discovered the mix-up later. The claimant and her husband sued for various heads of damage arising from the loss of genetic connection to the husband.

Issues

Whether loss of genetic affinity is a legally recognisable head of damage in tort, and if so, whether it is recoverable in a wrongful fertilisation claim.

Held

The Court of Appeal held that loss of genetic affinity is a recoverable head of damage. The court also held that the costs of raising the child were not recoverable, affirming the sanctity of life principle. Damages were awarded for the specific loss of the genetic connection the parents expected.

Ratio decidendi

Loss of genetic affinity—the disappointed expectation of having a child genetically related to both parents—is a distinct and actionable head of damage in tort where a medical provider's negligence results in fertilisation with the wrong genetic material, recognisable as a dignitary harm akin to distress and loss of autonomy.

Reasoning

The Court of Appeal reasoned that the loss was sui generis, involving profound interests in reproductive autonomy and the intimate nature of genetic parenthood. The court distinguished this loss from mere emotional distress and emphasised that the claim did not diminish the child's inherent value. The court applied principles of legal coherence, policy, and the need to vindicate the parents' legitimate interest in choosing their child's genetic makeup.

Significance

ACB v Thomson Medical is studied for its innovative recognition of a novel head of damage and its contribution to the law of medical negligence, reproductive torts, and the boundaries of non-pecuniary loss. It illustrates the court's willingness to adapt tort doctrine to modern medical technologies and family structures.