Abortion laws treat “viability” as a bright line. It isn't.

Mother Jones
Original Story by Mother Jones
November 9, 2026
Abortion laws treat “viability” as a bright line. It isn't.

The piece argues that tying abortion rights to a vague ‘viability’ line is flawed, as viability is an imprecise, context-dependent standard that can unjustly restrict care. It follows how states and advocates used viability in the wake of Roe v. Wade to shape laws and politics, leading to reforms that broaden or eliminate post-viability bans. The narrative centers on personal experiences, notably Kate Dineen’s 2021 case and Massachusetts’ 2022–2024 legislative shifts, to show how real patients are affected by legal gray areas. It also highlights the ongoing tension between patient autonomy and government intervention, with questions about what should govern late-term decisions and what comes next in policy and practice.

Dive Deeper:

  • Kate Dineen’s 2021 case: at 33 weeks, a catastrophic in-utero stroke left a 50 percent chance of survival with no healthy outcome, but Massachusetts law restricted abortion after 24 weeks, treating the fetus as viable and the patient as an incubator unless exceptions applied.

  • Viability as a legal and medical concept is debated: medical bodies note that viability depends on multiple factors (gestational age, genetics, weight, neonatal care, delivery circumstances) and cannot definitively predict survival.

  • Legal history and pivot: Roe v. Wade tied abortion rights to viability, allowing bans afterward with exceptions to protect the mother; Justice Alito later highlighted the ambiguity, enabling states to restrict abortion at many points.

  • Policy shift in Massachusetts: after initial expansions to include grave fetal diagnoses, a new law eliminated the viability line entirely, leaving later abortion decisions to a physician’s professional judgment.

  • Broader trend and pushback: four states enshrined abortion rights up to viability in their constitutions post-Roe reversal, with Nevada and Virginia adopting similar compromise approaches; others argue viability bans still enable government interference in medical decisions.

  • Medical and personal perspectives: Dr. Shelley Sella notes patients who faced barriers to later abortions despite complex factors; Dineen later worked with advocates to reform laws, emphasizing that pregnancy decisions hinge on patient-doctor collaboration rather than rigid legal thresholds.

  • Looking ahead: the article suggests ongoing debates about when and how abortion should be permitted, the role of medical judgment, and whether future policies will reduce gray areas or entrench uncertainty for patients seeking later-term care.

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