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A move across state, a baby, a divorce -- each can create a lot of stress, especially for kids. For a child who wets the bed it can be even harder. Symptoms that were in check may get worse, and dry nights could become more rare.

So does that mean stress and bedwetting are linked? The answer is no. And yes.

The Basics of Bedwetting

There are a lot of myths about bedwetting: That kids do it because they’re lazy. That if they just tried harder they could stop. And that stress or anxiety will cause a child who has never wet the bed to start.

Like a lot of myths, none of these is true. Wetting the bed -- also called nocturnal enuresis -- isn’t a behavioral issue kids can control. It’s genetic and often runs in families; if not a parent, then an aunt, uncle, or grandparent likely wet the bed.

For most kids, bedwetting is simply “a maturational lag,” says Martin Scharf, in his book Waking Up Dry: How to End Bedwetting Forever. A child’s bladder may be too small for the amount of urine they’re producing, or the muscles that contract the bladder may be stronger than the sphincter muscles that hold urine in.

And although stress can indirectly affect a child’s bedwetting, most experts believe it isn’t the reason a child starts wetting the bed. There’s just “no major association between anxiety, stress, and bedwetting,” says Anthony Atala, MD, chair of urology at the Wake Forest University School of Medicine.

Stress and Bedwetting: What's the Connection?

The association between stress and bedwetting is actually one step removed, says Atala. Although stress doesn’t cause a child to start wetting the bed, behavior the child engages in when under stress can make bedwetting worse, or make a child who was mostly dry experience wet nights. These behaviors include:

  • Eating a high-salt diet
  • Not emptying the bladder at night
  • Drinking fluids right up to bed time

Like many adults, kids may seek the comfort of food when they’re stressed, foods like salty snacks. But start eating a lot of salty foods and you’ll start retaining fluids. Start retaining fluids, and if you’re already likely to wet the bed because of a too-small bladder, you may wet even more.

Stress or anxiety may also cause a child to drink too much late at night, or they may forget to urinate before bed -- but it’s not the stress or anxiety causing the problem, it’s the behavior, Atala says.