NSAIDs Don’t Reduce Pain From IUD Placement

Research on pain management during placement of intrauterine devices (IUD) is lacking, but most studies so far indicate that nonsteroidal anti-inflammatory drugs (NSAIDs) are not effective, according to a poster presented at Pain Week 2024 in Las Vegas.

Roughly 79% of the 14 studies included in the systematic review found NSAIDs — one of the most common drugs clinicians advise patients to take before placement — did not diminish discomfort.

“We’re challenging the current practice of using just NSAIDs as a first-line of treatment,” said Kevin Rowland, PhD, professor and chair of biomedical sciences at Tilman J. Fertitta Family College of Medicine in Houston, who helped conduct the meta-analysis. “We need additional measures.”

Some studies found the drugs offered virtually no improvement for patients, while the biggest drop in pain shown in one study was about 40%. The range of pain levels women reported while using NSAIDs was between 1.8 and 7.3 on the visual analog scale (VAS), with an average score of 4.25.

The review included 10 types of NSAIDs and dosages administered to patients before the procedure. One intramuscular NSAID was included while the remaining were oral. All studies were peer-reviewed, used the VAS pain scale, and were not limited to any specific population.

The findings highlight a longstanding but unresolved problem in reproductive health: An overall lack of effective pain management strategies for gynecologic procedures.

“We went into this having a pretty good idea of what we were going to find because [the lack of NSAID efficacy] has been shown before, it’s been talked about before, and we’re just not listening as a medical community,” said Isabella D. Martingano, an MD candidate at Tilman J. Fertitta Family College of Medicine, who led the review.

The research also points to a lack of robust studies on pain during IUD placement, said Emma Lakey, a coauthor and medical student at Tilman J. Fertitta Family College of Medicine.

“We were only able to review 14 studies, which was enough to go off of, but considering we were looking for trials about pain control for a procedure that helps prevent pregnancy, that’s just not enough research,” Lakey said.

Discomfort associated with IUD placement ranges from mild to severe, can last for over a week, and includes cramping, bleeding, light-headedness, nausea, and fainting. Some research suggests that providers may underestimate the level of pain the procedures cause.

“Unfortunately, the pain associated with IUD insertion and removal has been underplayed for a long time and many practitioners in the field likely haven’t counseled patients fully on what the procedure will feel like,” said Jennifer Chin, MD, an OB/GYN and assistant professor of obstetrics and gynecology at the University of Washington in Seattle.

NSAIDs are not mentioned in the recently expanded guidelines on IUD placement from the US Centers for Disease Control and Prevention (CDC). The CDC recommends lidocaine paracervical blocks, gels, sprays, and creams, plus counseling women about pain ahead of the procedures.

IUDs are one of the most effective forms of birth control, with a failure rate below 1%.

Yet hearing about painful placement keeps many women from seeking out an IUD or replacing an existing device, Rowland said. The review adds to the body of evidence that current strategies are not working and that more research is needed, he said.

According to Chin, making IUDs more accessible means taking a more personalized approach to pain management while understanding that what may be a painless procedure for one patient may be excruciating for another.

Chin offers a range of options for her patients, including NSAIDs, lorazepam for anxiety, paracervical blocks, lidocaine jelly and spray, intravenous sedation, and general anesthesia. She also talks to her patients through the procedure and provides guided imagery and meditation.

“We should always make sure we’re prioritizing the patients and providing evidence-based, compassionate, and individualized care,” said Chin. “Each patient comes to us in a particular context and with a specific set of experiences and history that will make a difference in how we’re best able to take care of them.”

The authors reported no disclosures and no sources of funding. Chin reported no disclosures.

Brittany Vargas is a medicine, mental health, and wellness journalist.