Real-life examples of rights protected by the Ninth Amendment include a married couple’s decision to use contraception, a patient’s refusal of surgery, a parent’s choice about how a child is educated, a family’s move from one state to another, and two adults’ private conduct inside their own home. None of these rights appear in the text of the Constitution. The Ninth Amendment is the reason courts protect them anyway. Its single sentence says the enumeration of specific rights in the Constitution “shall not be construed to deny or disparage others retained by the people.”1Library of Congress. U.S. Constitution – Ninth Amendment In practice, that means the government cannot claim a freedom is unprotected just because the Bill of Rights failed to name it.
The amendment rarely stands alone as the basis for a ruling. Courts usually protect these unwritten freedoms through the Due Process Clause of the Fifth or Fourteenth Amendment, with the Ninth serving as a signal that such rights exist. Justice Goldberg put it plainly in his Griswold concurrence: the amendment “shows a belief of the Constitution’s authors that fundamental rights exist that are not expressly enumerated in the first eight amendments,” while cautioning that it is not “an independent source of right” on its own.2Justia. Griswold v. Connecticut, 381 U.S. 479 (1965) The examples below show what that idea looks like in ordinary life.
A Married Couple Choosing Contraception
Picture a married couple at their kitchen table talking about whether and when to have children. No government official belongs in that conversation. That private choice is the subject of the most famous Ninth Amendment case in American law.
In Griswold v. Connecticut (1965), the Supreme Court struck down a state law banning the use of contraceptives, even by married couples. Justice Douglas, writing for the majority, said “specific guarantees in the Bill of Rights have penumbras” — zones of privacy formed by the First, Third, Fourth, Fifth, and Ninth Amendments together. Justice Goldberg’s concurrence went further, arguing that a right as “basic and fundamental and so deep-rooted in our society as the right of privacy in marriage” cannot be dismissed just because the first eight amendments do not mention it.2Justia. Griswold v. Connecticut, 381 U.S. 479 (1965)
The couple at that table is exercising a right the founders never wrote down. Griswold is the clearest working illustration of what the Ninth Amendment does.
A Patient Refusing Medical Treatment
Picture a patient in a hospital bed. A doctor recommends surgery, but the patient weighs the risks and says no. The Constitution never mentions healthcare, hospitals, or surgery. Yet the Supreme Court has recognized “a constitutionally protected right to refuse medical care.”3Legal Information Institute. Right to Refuse Medical Treatment This is exactly the sort of gap the Ninth Amendment was built to cover, preventing the government from claiming authority over your body just because the Bill of Rights stayed silent on the subject.
The right is not absolute. Courts have upheld certain mandatory measures, such as vaccinations, when the government can show a strong enough justification. The Supreme Court has acknowledged a patient’s “significant liberty interest” in refusing drugs while still allowing narrow overrides, such as involuntary medication of incarcerated individuals under specific procedural safeguards.3Legal Information Institute. Right to Refuse Medical Treatment The baseline, though, is that decisions about your body start with you.
A Parent Directing a Child’s Education
Imagine a parent looking over a school’s reading list, deciding certain materials conflict with how they want to raise their child, and arranging supplemental lessons that better reflect the family’s values. That kind of decision has been constitutionally protected for over a century.
In Meyer v. Nebraska (1923), the Supreme Court struck down a state law that prohibited teaching foreign languages to young students, holding that parents have a liberty interest in directing their children’s education under the Fourteenth Amendment.4Justia. Meyer v. Nebraska, 262 U.S. 390 (1923) Two years later, Pierce v. Society of Sisters invalidated an Oregon law that essentially required all children to attend public schools. The Court declared that “the child is not the mere creature of the State” and that parents have “the right, coupled with the high duty, to recognize and prepare him for additional obligations.”5Justia. Pierce v. Society of Sisters, 268 U.S. 510 (1925)
Neither case was decided directly under the Ninth Amendment. Both illustrate its core principle: fundamental rights do not vanish because the Constitution fails to list them. The right to shape a child’s upbringing appears nowhere in the Bill of Rights, yet it is one of the oldest liberty interests American courts recognize.
A Family Moving From One State to Another
Picture a family loading a moving truck and driving across a state line. They pass no border checkpoint. They carry no internal passport. That freedom is so ordinary that most people never think about it, and it appears nowhere in the Bill of Rights.
The Supreme Court addressed this right in Saenz v. Roe (1999), identifying three components: the right to enter and leave a state, the right to be treated as a welcome visitor while passing through, and the right of a newly arrived citizen to the same benefits as long-term residents. The Court grounded these protections in the Privileges and Immunities Clause and the Fourteenth Amendment rather than the Ninth, but the logic is the same: this right predates the Constitution and was “conceived from the beginning to be a necessary concomitant of the stronger Union the Constitution created.”6Legal Information Institute. Saenz v. Roe
The right is not unlimited. People on probation or parole often need permission to leave their county or state, and the federal government can restrict international travel for national security reasons.7Constitution Annotated. Amdt5.7.8 Right to Travel Abroad and Substantive Due Process For ordinary citizens, though, the freedom to move is a retained right the Ninth Amendment was built to preserve.
Two Adults in Their Own Home
Picture someone at home choosing what to read, how to spend an evening, or whom to invite over. These choices feel too small to be constitutional issues, and that is the point. The Ninth Amendment exists so that no one has to argue the founders specifically intended to protect a particular book, guest, or evening plan.
The Supreme Court drew on this principle in Lawrence v. Texas (2003), striking down a state law that criminalized private, consensual intimate conduct between adults. The Court held that “the liberty protected by the Constitution allows homosexual persons the right to choose to enter upon relationships in the confines of their homes and their own private lives and still retain their dignity as free persons,” and concluded that the Texas statute “furthers no legitimate state interest which can justify its intrusion into the individual’s personal and private life.”8Justia. Lawrence v. Texas, 539 U.S. 558 (2003)
Lawrence was decided under the Due Process Clause, not the Ninth Amendment alone. It still showcases the amendment’s animating idea: private conduct that harms no one else falls outside the government’s reach, whether or not the founders anticipated the specific activity.
The Common Thread
Every example here shares a pattern. The right in question is not written in the Constitution, but courts protect it anyway. The Ninth Amendment is what keeps the courthouse door open in each case. Without it, a government lawyer could argue that because the Constitution says nothing about contraception, medical refusal, parenting, moving, or private relationships, those freedoms deserve no protection at all. The amendment forecloses that argument. As the judicial consensus has framed it, the Ninth Amendment “states but a rule of construction” ensuring the Bill of Rights is never read as an exhaustive list.9Constitution Annotated. Amdt9.3 Ninth Amendment Doctrine That is why the everyday freedoms above still stand, even though the Constitution never named a single one of them.