While “dry drowning” and “secondary drowning” are not official terms, dry drowning happens when someone breathes in small amounts of water during a struggle, Orlowski says. That triggers the muscles in their airway to spasm and makes breathing difficult.
In secondary drowning, fluid builds up in the lungs, called pulmonary edema, after a near-drowning incident. The fluid causes trouble breathing.
A person who had a drowning close call can be out of the water and walking around normally before signs of dry drowning become apparent. But all dry drowning results in breathing trouble and brain injury, just as drowning in the water does. If untreated, it can be fatal.
Is dry drowning rare?
Dry drowning and secondary drowning are not common. Both probably amount to only 1%-2% of drownings, Orlowski says.
These signs are not easy to spot, particularly in young children who may normally be fussy or tired after a long day in the sun and water. If your child struggles or has problems while in the water, look for these signs, which can appear hours later.
What should you do if you think someone is at risk?
If you notice any of the signs above, go to to the emergency room immediately. Time is an important factor in treating dry drowning.
Can dry or secondary drowning be treated?
Yes, they can be treated with oxygen or ventilation at the hospital.