Why Does My Nose Run After Surfing? Here's the Cause

Your nose runs after surfing because of two things happening together: seawater trapped in your sinuses during duck-dives drains out once you tilt your head, and cold water or wind irritates your nasal lining into producing extra fluid (cold-induced rhinitis).

You know the moment. You've climbed out of the water, peeled off your wetsuit, and you're bending down to grab your keys — when your nose releases a sudden, unannounced stream of seawater. It's harmless, it's a little embarrassing, and just about every surfer knows it well.

Here's what's actually going on, and what you can do about it.

Two things are happening

The post-surf nose run usually comes down to a mix of two ordinary, well-understood mechanisms.

1. Trapped water draining out. Every duck-dive and wipeout forces seawater up into your nasal passages and the sinus cavities behind your cheeks and brow. Those cavities have narrow openings, so some water simply pools there while you're surfing — especially if the lining is a little swollen. When you later tilt or lower your head — bending to tie a shoelace, loading the car, leaning in to say hello — gravity lines the exit up and the water suddenly finds its way out. That's the classic delayed gush.

2. A runny nose triggered by cold and effort. Separately, cold water and cold wind irritate the lining of the nose, which responds by producing thin, clear fluid. Doctors call this cold-induced rhinitis (sometimes "skier's nose"), and exercise can add to it. This is why your nose can keep running for a while even after the trapped water is gone.

Neither is unique to surfing — swimmers, divers and open-water swimmers get it too — but surfers cop a double dose: repeated duck-diving that pushes water up the nose, plus cold water and wind in your face for hours.

Is it anything to worry about?

For the vast majority of surfers, no — it's a nuisance, not a problem. The water draining out is a good thing.

A couple of honest caveats, though. Seawater carries bacteria, and if water sits in your sinuses it can occasionally contribute to irritation or a sinus infection — more likely after surfing in polluted water. If you get persistent facial pain or pressure, thick or discoloured discharge, a blocked nose that won't clear, or symptoms that drag on, it's worth seeing a doctor. (This is general information, not medical advice — a GP or ENT can sort out anything that isn't settling.)

Worth noting: the post-surf nose run is a different thing from surfer's ear (bony growths in the ear canal from years of cold water and wind), which is a genuine reason to wear earplugs.

How to reduce it

You won't eliminate it entirely, but a few simple habits help a lot.

• Breathe out through your nose on duck-dives. A gentle, continuous exhale through the nose as you push under keeps water from being forced up in the first place. It's the single most effective habit.
• Consider a nose clip on heavy days. If you're surfing a lot of consequence and duck-diving constantly, a soft nose clip stops water entering at all.
• Drain before you socialise. Before you leave the beach, tilt your head forward and gently to each side and blow your nose softly — clear the water on your terms, not in front of someone.
• Rinse your sinuses after cold or dirty-water surfs. A saline nasal rinse (a squeeze bottle or neti pot with the correct saline mix) flushes out lingering seawater and grit. It's a well-established, cheap habit that surfers, swimmers and sinus sufferers swear by. Always use distilled, previously boiled, or sterile water for the rinse — never straight tap water.
• Warm up your face. Since cold is a trigger, a hood in winter reduces the cold-induced runniness as a bonus to keeping you warm.

None of this is dramatic, and that's the point. The post-surf nose run is just your body doing exactly what it should — clearing the ocean back out so you can go again tomorrow.