Beginning of human personhood in the context of "Gestational age (obstetrics)"

Personhood is the status of having outstanding moral worth. Yet the specific criteria that qualify someone as a person are controversial. In the West, personhood tends to be defined in terms of "sophisticated cognitive capacities;" yet, in other societies, such as sub-Saharan Africa, personhood is more often understood as a relational process. Defining personhood is a controversial topic in philosophy and law and is closely tied with legal and political concepts of citizenship, equality, and liberty. According to law, only a legal person (either a natural or a juridical person) has rights, protections, privileges, responsibilities, and legal liability.

Personhood continues to be a topic of international debate and has been questioned critically during the abolition of human and nonhuman slavery, in debates about abortion and in fetal rights and/or reproductive rights, in animal rights activism, in theology and ontology, in ethical theory, and in debates about corporate personhood, and the beginning of human personhood. In the 21st century, corporate personhood is an existing Western concept; granting non-human entities personhood, which has also been referred to a "personhood movement", can bridge Western and Indigenous legal systems.

Fetal rights or foetal rights (alternatively prenatal rights) are the moral rights or legal rights of the human embryo or fetus under natural and civil law. The term fetal rights came into wide usage after Roe v. Wade, the 1973 landmark case that legalized abortion in the United States and was essentially overturned in 2022. The concept of fetal rights has evolved to include the issues of maternal substance use disorders, including alcohol use disorder and opioid use disorder. Most international human rights charters "clearly reject claims that human rights should attach from conception or any time before birth." While most international human rights instruments lack a universal inclusion of the fetus as a person for the purposes of human rights, the fetus is granted various rights in the constitutions and civil codes of some countries.

The abortion debate is a longstanding and contentious discourse that touches on the moral, legal, medical, and religious aspects of induced abortion. In English-speaking countries, the debate has two major sides, commonly referred to as the "pro-choice" and "pro-life" movements. Generally, supporters of pro-choice argue for the right to choose to terminate a pregnancy. They take into account various factors such as the stage of fetal development, the health of the woman, and the circumstances of the conception. By comparison, the supporters of pro-life generally argue that a fetus is a human being with inherent rights and intrinsic value, and thus, cannot be overridden by the woman's choice or circumstances and that abortion is morally wrong in most or all cases. Both the terms pro-choice and pro-life are considered loaded words in mainstream media, which tend to prefer terms such as "abortion rights" or "anti-abortion" as more neutral and avoidant of bias.

Each movement has had varying results in influencing public opinion and attaining legal support for its position. Supporters and opponents of abortion often argue that it is essentially a moral issue, concerning the beginning of human personhood, rights of the fetus, and bodily integrity. Additionally, some argue that government involvement in abortion-related decisions, particularly through public funding, raises ethical and political questions. Libertarians, for example, may oppose taxpayer funding for abortion based on principles of limited government and personal responsibility, while holding diverse views on the legality of the procedure itself. The debate has become a political and legal issue in some countries with those who oppose abortion seeking to enact, maintain, and expand anti-abortion laws, while those who support abortion seek to repeal or ease such laws and expand access to the procedure. Abortion laws vary considerably between jurisdictions, ranging from outright prohibition of the procedure to public funding of abortion. The availability of abortion procedures considered safe also varies across the world and exists mainly in places that legalize abortion.