Excess saliva (ptyalism) during pregnancy

By trimester

Weeks 1–13

1st trimester

This usually starts alongside morning sickness, and in more severe cases can add up to over a liter of extra saliva a day. Many people find it easier to spit discreetly into a cup or tissue rather than swallow, since letting saliva pool can actually worsen nausea. Small sips of water can help too.

Weeks 14–27

2nd trimester

For most people, extra saliva eases up along with nausea by now. If your nausea is gone but the saliva isn't, or if it just started, mention it at your next visit rather than assuming it'll pass on its own. It can occasionally happen without nausea too.

Weeks 28–birth

3rd trimester

One study found a link between this symptom and lower birth weight, while another similar-sized study found no increase in complications at all. The evidence is mixed, not alarming, but it's still worth mentioning ongoing excess saliva to your provider now so they can track growth as part of routine care.

What does the evidence show for excess saliva?

• Eating small meals or snacks every one to two hours and sipping cold or partially frozen fluids, the same comfort measures used for pregnancy nausea, are a sensible starting point for excess saliva too, since the two symptoms are so closely linked. 1
• Excess saliva showed up in about 1 of every 963 pregnancies in one study, and 40 percent of those cases also involved severe nausea and vomiting, but researchers found no overall increase in complications for mother or baby. 2
• A separate study comparing 22 pregnancies with excess saliva against more than 7,700 without it found links to a prior history of severe nausea, male babies, and smaller-than-expected birth size, leading the researchers to call it worth clinical attention rather than something to dismiss. 3
• Excess saliva has occasionally been reported without any nausea or vomiting at all, and researchers have called for the symptom to get more attention during prenatal visits because of its potential effect on wellbeing and outcomes. 4
• Nobody actually knows what causes excess saliva in pregnancy, and no controlled studies have tested a specific way to manage it, which is why most practical advice still borrows from ordinary nausea care instead of offering a dedicated fix. 5
• Ptyalism gravidarum can progress to skin irritation and maceration around the mouth and chin, swollen salivary glands, and a retching reflex when trying to swallow saliva, and difficulty swallowing can reduce appetite and food intake enough to cause weight loss. 6

When should I call my provider about excess saliva?

Skin irritation or breakdown around the mouth and chin from constant wiping and spitting, or noticeable swelling of the salivary glands, are physical signs worth mentioning to your provider rather than dismissing as purely cosmetic. If swallowing saliva becomes uncomfortable enough to cut into your appetite and cause weight loss, or the sleep loss and distress from constant drooling are wearing you down, that combination is reason enough to ask your provider for real support rather than waiting it out alone. If you are ever unsure which side of the line you are on, make the call. Obstetric teams handle these check-ins as routine, not as overreacting.