What Percentage of Abortions Are Due to Rape or Incest?

Surveys of women obtaining abortions in the United States consistently find that roughly 1% cite rape as a reason and less than half a percent cite incest. Those figures, drawn primarily from self-reported questionnaire data collected at abortion facilities, have remained remarkably stable over several decades of research. But the number deserves more scrutiny than it usually gets, because the conditions under which it is collected virtually guarantee it is an undercount.

Where the Commonly Cited Numbers Come From

The most widely referenced U.S. data on reasons for abortion come from periodic surveys conducted by the Guttmacher Institute, a reproductive health research organization. In these surveys, women presenting for abortion care are asked to select from a list of reasons for their decision. Rape and incest consistently appear near the bottom of the list in terms of frequency. Across multiple survey waves, socioeconomic concerns and the desire to limit or space childbearing dominate the responses. A synthesis of data from 14 countries found the same general pattern: financial pressures and decisions about family size are cited far more often than sexual violence as the primary reason for seeking an abortion.¹

Several U.S. states that collect individual-level data on abortion reasons report even lower figures than the national surveys. Florida, for example, has published statistics showing rape cited in fewer than 0.2% of abortions in recent years, with incest even rarer. These state-level numbers are sometimes used to argue that rape and incest account for a vanishingly small share of abortions. The problem is that these reporting systems vary widely in how they collect the data, whether forms allow multiple reasons to be checked, and whether the question is asked in a setting where a patient would feel safe disclosing.

Why These Figures Are Almost Certainly Undercounts

Sexual assault is one of the most underreported crimes in any category. National victimization surveys in the United States have consistently found that a majority of rapes and sexual assaults are never reported to police. The gap between what people experience and what they disclose extends into healthcare settings as well. A study of women veterans using reproductive health services through the Veterans Health Administration found that about 31% who reported military sexual trauma on an anonymous survey had a negative result on their most recent clinical screening for that same trauma, meaning they had not disclosed it to their provider.² If disclosure rates are that low even in a healthcare system designed to screen for sexual trauma, the situation in a busy abortion clinic with a paper intake form is unlikely to be better.

Think about what the 1% figure actually represents. It reflects the number of women who, in the specific moment of filling out forms at an abortion facility, voluntarily wrote down or checked a box next to “rape” or “incest.” There are many reasons a person might not do that. The assault may not have been reported to police. The patient may not want it in her medical record. She may be accompanied by the person who assaulted her. She may have multiple reasons for the abortion and list a different one as primary. She may not categorize what happened to her as rape, particularly in cases involving a partner or family member. Each of these filters removes real cases from the count.

Incest is even harder to capture in survey data. Incest overwhelmingly involves minors or young adults who are under the control of the perpetrator and who may not be the ones filling out their own medical paperwork. The shame and family pressure surrounding incest make disclosure in a clinical setting exceptionally unlikely without targeted, sensitive screening.

How Common Is Rape-Related Pregnancy in the United States?

A useful way to approach the question from the other direction is to look at how many pregnancies result from rape in the first place, regardless of outcome. A nationally representative survey published in the American Journal of Preventive Medicine estimated that roughly 2.9 million U.S. women, about 2.4% of the female population, had experienced a rape-related pregnancy at some point in their lives.³ A more recent analysis using updated national data expanded the definition to include sexual coercion alongside forcible rape and arrived at a higher figure: about one in 20 women, or over 5.9 million, had experienced a pregnancy resulting from rape, sexual coercion, or both.⁴

Not all of those pregnancies end in abortion. Some result in miscarriage, some in births that the person chooses to continue, and some in births that occur because the person lacked access to abortion. But the sheer scale of rape-related pregnancy in the population makes it clear that the absolute number of abortions connected to sexual violence is larger than the 1% survey figure might suggest. The gap between “how many rape-related pregnancies occur” and “how many women check the rape box on a clinic form” is enormous, and that gap is made of stigma, fear, and survey design.

How Incest Cases Present Differently

Incest-related pregnancies tend to involve younger victims, longer delays before the pregnancy is discovered, and more advanced gestational age at the time of abortion. A study of adolescent pregnancies resulting from sexual violence in Brazil examined over 300 cases and found that 44% involved incest while 56% involved rape by a stranger. The incest cases had several distinguishing features: the victims were younger on average, the assaults took place in spaces considered safe or private, and the pregnancies were further along when care was sought, with gestations of 13 weeks or more being more common.⁵

The delay makes sense when you consider the dynamics. An adolescent being abused by a family member often has no independent access to healthcare. The abuser may control when and whether the victim sees a doctor. The victim may not understand what is happening to her body, especially if she is very young. By the time the pregnancy is discovered, it may be well into the second trimester, which narrows the available options and increases the medical complexity and cost of an abortion. This pattern is not unique to Brazil; it reflects dynamics that advocates and clinicians in the United States describe as well.

Gestational Timing and Delays in Seeking Care

Even outside of incest, abortions sought because of rape tend to occur later in pregnancy than abortions sought for other reasons. A study at two urban family planning clinics found that patients seeking abortion for rape-related pregnancy presented at a later gestational age, with a median difference of about 12 days compared to patients seeking abortion for other reasons.⁶ Twelve days may not sound like much, but in the context of gestational-age-based abortion restrictions, it can be the difference between qualifying for a simpler first-trimester procedure and facing a more involved second-trimester one, or between having legal access in a given state and not having it at all.

The reasons for the delay compound. Trauma responses can include denial, dissociation, and avoidance. A person who has been raped may not take a pregnancy test as quickly as someone whose pregnancy was a foreseeable risk. If the assault involved a partner or acquaintance, the victim may not immediately frame the encounter as nonconsensual, especially if alcohol or coercion rather than physical force was involved. Financial barriers, lack of transportation, and the need to navigate an unfamiliar healthcare system also add time. Every week of delay pushes the pregnancy closer to or past gestational limits, particularly in states with early cutoffs.

Do Rape and Incest Exceptions in Abortion Laws Actually Work?

In the wake of the U.S. Supreme Court’s 2022 decision overturning federal abortion protections, several states enacted near-total bans on abortion that included nominal exceptions for rape and incest. The practical effectiveness of these exceptions has been questioned by researchers and clinicians alike. An analysis of legislative debates and legal frameworks in six southern U.S. states concluded that where rape and incest exceptions exist on paper, they do not operate effectively to ensure access to abortion. The researchers described these exceptions as “exclusionary” in practice, limiting access, availability, and quality of care.⁷

The reasons are structural. Many exceptions require that the rape be reported to law enforcement before an abortion can be performed, but as noted earlier, most rapes go unreported. Some require a waiting period after the report, which adds further delay to an already delayed process. Physicians in restrictive states have described uncertainty about what documentation is legally sufficient to protect them from prosecution, leading some to turn patients away even when the exception technically applies. For incest involving a minor, the requirement to involve law enforcement can be especially fraught: if the perpetrator is a parent or guardian, the victim may have no safe way to make a report.

The result is that the exceptions function more as political talking points than as reliable pathways to care. A person whose pregnancy results from rape or incest in a state with a ban-plus-exception may face the same practical obstacles as someone in a state with a total ban: the need to travel to another state, raise funds for travel and lodging, take time off work, and find a willing provider with availability.

Emergency Contraception and the Prevention Gap

One factor that keeps the number of rape-related abortions lower than the number of rape-related pregnancies is emergency contraception, which can prevent pregnancy if taken within a few days of the assault. Researchers have estimated that optimal provision of emergency contraception to sexual assault survivors could prevent roughly 95% of rape-related pregnancies.⁸ That number reflects how effective the medication is when given promptly and correctly. In practice, many survivors do not present to an emergency department after an assault. Among those who do, not all are consistently offered emergency contraception, and institutional policies at some religiously affiliated hospitals have historically restricted its provision.

The gap between what emergency contraception could prevent and what it actually prevents in routine care is significant. Improving emergency department protocols for sexual assault survivors is an active area of quality improvement research, precisely because the potential to prevent downstream pregnancies and abortions is so large. When a survivor does not receive emergency contraception, the decision about the pregnancy shifts from a preventive measure in the immediate aftermath of the assault to an abortion decision weeks later, with all the logistical, emotional, and legal complications that entails.

Screening Challenges at Abortion Clinics

The way abortion facilities identify rape-related pregnancies matters for both patient care and for the accuracy of the statistics. A national survey of U.S. abortion care settings found that about half of clinics reported screening patients for pregnancy resulting from rape. But fewer than 35% said that screening was the method through which most patients with this history were actually identified, meaning that even at facilities that screen, many cases come to light only incidentally, if at all.⁹

The same survey found that about 80% of clinics refer patients with rape-related pregnancies to support services like rape crisis centers, but only about 20% have a specific protocol for caring for these patients. Clinics that did screen were substantially more likely to have a care protocol in place. The implication is that a large share of abortion facilities are operating without structured approaches to identifying and supporting this patient population. That is not necessarily because clinics are indifferent; many operate under severe resource constraints and time pressure. But it means the published statistics on rape as a reason for abortion reflect whatever comes through an inconsistent patchwork of screening practices, not a systematic count.

Forensic Dimensions of Rape-Related Abortion

In some legal contexts, fetal tissue from an abortion can serve as forensic evidence in a sexual assault case. DNA extracted from aborted fetal material can be used for paternity testing through analysis of genetic markers, potentially identifying an unknown assailant or confirming the identity of a known suspect.¹⁰ This intersection of reproductive healthcare and criminal investigation creates complicated territory. For a survivor, the abortion itself may provide the strongest available evidence against the perpetrator, but only if the tissue is collected and preserved properly and the patient consents to its forensic use.

Awareness of this possibility varies widely among both patients and providers. In cases where no police report has been filed, the forensic value of the tissue may not be discussed at all. In cases where a report has been filed, coordination between law enforcement, the crime lab, and the abortion provider is necessary but far from routine. The forensic angle adds another layer to why the relationship between rape and abortion is more complex than a single percentage can capture. Some of these cases are simultaneously medical procedures, trauma responses, and active criminal investigations.

Reproductive Coercion as a Related but Distinct Category

The conversation about rape and abortion often focuses narrowly on forcible rape by a stranger, but a significant share of unwanted pregnancies result from subtler forms of sexual coercion or reproductive control by a partner. Reproductive coercion includes behaviors like sabotaging contraception, pressuring a partner to become pregnant against her will, or threatening violence if she tries to use birth control or seek an abortion. The updated national estimate that counted both rape and sexual coercion found that over 5.9 million women had experienced a related pregnancy, a figure more than double the estimate for forcible rape alone.⁴

These coerced pregnancies rarely show up in abortion statistics under the “rape” category. A woman whose partner secretly poked holes in her condoms is unlikely to describe her pregnancy as resulting from rape on a clinic intake form, even though her autonomy was violated. The legal definitions of rape and the colloquial understanding of it do not neatly map onto the full spectrum of coerced sex and reproductive sabotage. This is another reason the 1% figure fails to capture the true scope of the problem. It reflects only the narrowest, most recognized category of sexual violence leading to pregnancy, while leaving out a much larger population of women whose pregnancies resulted from coercion that does not fit the legal or cultural script of “rape.”

For clinicians, the overlap between intimate partner violence, reproductive coercion, and abortion creates a practical challenge. A patient presenting for an abortion after reproductive sabotage may be at ongoing risk of violence, and the abortion itself may escalate that risk if the controlling partner discovers it. Screening for these dynamics requires a level of trust and privacy that is difficult to achieve in a brief clinical encounter, which means these patients often pass through the system without their circumstances being documented or addressed.