Medical abortion may be considered in early pregnancy, while surgical abortion offers a faster and more predictable outcome.
The two methods differ in success rates, pain, bleeding, side effects, anesthesia, and the time required for completion.
An ultrasound, blood tests, and follow-up care are essential to confirm complete termination and safe recovery.

When facing an unintended pregnancy, many patients ask whether pregnancy termination can be performed with medication instead of surgery.

“Doctor, should I choose a medical abortion or a surgical abortion?”

Today, I would like to explain the indications, advantages, and disadvantages of each method to help you better understand your options.

1. Gestational Age and Eligibility

The first step is to confirm the gestational age.

For someone with a regular 28-day menstrual cycle, pregnancy is dated from the first day of the last menstrual period. 

This means that the actual conception usually occurred about two weeks later.

For example, if you are five weeks pregnant, conception most likely occurred approximately three weeks ago.

Medical abortion is generally not recommended beyond seven weeks of pregnancy, so we do not perform it at our clinic after this point.

In comparison, a surgical abortion can usually be performed with a relatively simple suction procedure within the first ten weeks. 

After 11 weeks, however, fetal bone development has progressed and the cervix may need to be dilated, making the procedure more complicated.

2. Success Rates and Procedure

Medical and surgical abortion have different success rates.

Medical abortion performed within seven weeks of pregnancy is reported to have a success rate of approximately 94–95%. 

This also means that there is a possibility of failure.

Even if the overall risk is low, it becomes a very real concern when it happens to an individual patient. If the medication does not completely terminate the pregnancy, a suction procedure may be necessary. Patients should fully understand this possibility before making a decision.

Surgical abortion, on the other hand, has a success rate close to 100% and provides a more immediate and predictable outcome.

The procedure is performed while monitoring the uterus with ultrasound to confirm that the pregnancy tissue has been removed. 

From the patient’s perspective, the procedure is usually performed under sedation. 

After waking up and receiving appropriate monitoring, the patient can generally return home.

Another important consideration is that the timing of tissue expulsion after taking medication can be difficult to predict.

Patients are usually advised that the process may take up to two weeks. 

For those who tend to feel anxious or want the pregnancy resolved as quickly as possible, this waiting period can be emotionally challenging.

Physicians may also prefer a surgical procedure because it allows them to confirm that the pregnancy tissue has been removed and the procedure has been completed.

With medical abortion, both the patient and the physician may need to wait while monitoring whether the medication has worked successfully. This period of uncertainty may be difficult for some patients.

In addition, pregnancy symptoms can continue during the waiting period. Patients experiencing severe headaches,

intense nausea, or vomiting that makes it difficult to drink water may decide to switch to a surgical abortion 

before the medical process is complete.

These factors should be carefully considered when choosing between the two methods.

3. Pain and Possible Side Effects

Some patients expect a medical abortion to involve simply taking medication and quickly passing the pregnancy tissue. 

In reality, the process may not be that simple.

Mifegyne is currently not approved for use in South Korea. Therefore, medical abortion may involve methotrexate, also known as MTX, which inhibits folate metabolism, along with misoprostol, a medication that causes uterine contractions.

These medications may cause stomach cramps, digestive discomfort, diarrhea, a temporary rise in body temperature, or headaches.

Heavy bleeding may also occur suddenly. Some patients may feel faint or become distressed after seeing large blood clots.

Surgical abortion is generally performed under sedation while the patient is asleep. 

Bleeding afterward is usually not heavy, and abdominal pain may be brief, followed by a mild aching or cramping sensation.

In comparison, medical abortion may involve stronger abdominal cramps and more noticeable bleeding because the patient experiences the process of passing the pregnancy tissue directly.

This physical and emotional experience can be difficult for some patients.

4. The Importance of Follow-Up Care and Other Considerations

Follow-up care is essential after both medical and surgical abortion.

Even when substantial bleeding occurs after taking medication, an ultrasound may still show that the gestational sac remains inside the uterus.

Symptoms alone cannot confirm that the pregnancy has been completely terminated.

An ultrasound and blood tests are necessary to confirm 

that the pregnancy hormone level is decreasing appropriately and that the pregnancy has ended.

Follow-up care is also important after a surgical abortion.

In some cases, blood may collect inside the uterus after the procedure, or bleeding may continue due to a small amount of retained pregnancy tissue. Rarely, retained tissue may continue to grow and lead to further complications.

A follow-up examination is therefore necessary to confirm that the uterus is recovering properly and that there are no complications.

Every patient has different thoughts, concerns, and personal values.

Some patients worry because MTX is also used as a chemotherapy drug. 

This concern is understandable. However, chemotherapy-related effects are generally associated with much higher doses.

 MTX is also used in lower doses for autoimmune conditions such as rheumatoid arthritis and for the treatment of ectopic pregnancy.

Nevertheless, if the use of this medication causes significant anxiety, a medical abortion may not be the most suitable option for that patient.

A surgical abortion usually requires sedation. Patients who strongly dislike sedation or who have asthma or other serious underlying medical conditions may require additional precautions or may not be suitable candidates for the procedure.

Some patients are also concerned that inserting a suction device into the uterus may cause significant uterine damage.

In most cases, the uterine lining can be gently treated without serious problems.

 However, patients are informed that rare complications may occur, including infection, damage to the endometrium, or intrauterine adhesions such as Asherman syndrome.

Medical abortion may also very rarely be associated with infection, adhesions, or reduced ovarian function related to medication use.

However, whether an early pregnancy is terminated medically or surgically, the risk of the serious complications that many patients worry about is generally very low. The overall likelihood of complications is considered similar between the two methods.

During more than 20 years of medical practice, I have learned that a patient’s beliefs and feelings about pregnancy, childbirth, and menstruation cannot be changed through a brief explanation from a physician.

Rather than trying to change a patient’s mind, I believe my role as a physician and specialist is to understand the patient’s values and help identify the safest and most appropriate option for her circumstances.

If you unexpectedly need to consider pregnancy termination, take some time to think about what matters most to you.

Most importantly, visit a medical facility to accurately confirm the pregnancy, gestational age, and condition of the uterus and ovaries. After receiving a thorough evaluation, discuss the available options with an OB-GYN specialist and choose the method that is most appropriate for you.