Abortion is the medical termination of a pregnancy. It is a common medical service that many women obtain at some point in their life. There are different types of abortion methods, which the National Academy of Sciences, Engineering, and Medicine (NASEM) places in four categories:
- Medication Abortion – Medication abortion, also known as medical abortion or abortion with pills, terminates a pregnancy by oral medications. There are two widely accepted protocols for medication abortion. In the U.S., the most common protocol involves the drugs mifepristone and misoprostol. Typically, an individual takes mifepristone first, followed by misoprostol 24-48 hours later. The U.S. Food and Drug Administration (FDA) has approved this abortion protocol up to the first 70 days (10 weeks) of pregnancy. Another medication abortion protocol uses misoprostol alone, which is also recommended for up to 70 days (10 weeks) of pregnancy, but it is not currently approved by the FDA and is more commonly used in other countries.
The Guttmacher Institute estimates that in 2023, medication was used for almost two thirds (63%) of all abortions. Many have confused emergency contraception (EC) pills with medication abortion pills, but EC does not terminate a pregnancy. EC is a contraceptive that prevents pregnancy by delaying or inhibiting ovulation and will not affect an established pregnancy.
- Aspiration, a minimally invasive and commonly used gynecological procedure, is the most common form of procedural abortion. It can be used to conduct abortions up to 14-16 weeks of gestation. Aspiration is also commonly used in cases of early pregnancy loss (miscarriage).
- Dilation and evacuation abortions (D&E) are usually performed after the 14th week of pregnancy. The cervix is dilated, and the pregnancy tissue is evacuated using forceps or suction.
- Induction abortions are rare and conducted later in pregnancy. They involve the use of medications to induce labor and delivery of the fetus.