The Most Dangerous Sea Creature

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MyDiveLog

Contributor
Scuba Instructor
Messages
365
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Location
Yorba Linda, CA
# of dives
200 - 499
Which animal is the most hazardous to scuba divers?
a) Great White Shark
b) Tiger Shark
c) Barracuda
d) Sea Urchin

While nearly everyone chooses a, b or c, I am living proof that the correct answer is d. A recent ‘minor’ sea urchin stick required six doctor visits, antibiotics, steroids, surgery (not the wimpy out-patient kind, but an honest-to-goodness surgery in a hospital while under a general anesthetic) and physical therapy.

It started out simply: About two months ago I forgot to pack my dive gloves. I didn’t think it was a big deal, because the water temperature was 72 degrees and I’d been doing dives with students all summer without gloves (it gives us better manual dexterity to resolve issues students might have with straps, buckles, etc.) I led the dive and stopped to check how much air my buddy had left. A large wave swept overhead, creating surge that pushed me backward into the reef. Three tines of a sea urchin stuck about an eighth inch into the middle finger of my left hand, breaking off as they did so.

It wasn’t very painful and I wasn’t concerned, since it had happened before. The treatment was the same as for a splinter: Remove the tines and soak the finger in a very hot solution of water and iodine. The tips of sea urchin spines, however, are much more difficult to dig out than splinters. They are hard to grab with tweezers, break off easily, and have small barbs that cause them to dig deeper into the skin. Because of this my wife was unable to remove the one of the tines.

The next morning there was no evidence of any injury, and I wondered if the tine had simply fallen out while I slept. It hadn’t; about a week later my finger swelled up significantly, with lots of stiffness and tenderness. My doctor isn’t a diver, so I checked the D.A.N. website for direction. Their advice was a course of anti-inflammatory steroids. I showed a printout of the D.A.N. article the doctor, who dutifully prescribed Prednisone.

The Prednisone worked wonderfully. The swelling disappeared immediately … but returned worse than ever a week later once the Prednisone taper ended. The finger was sore and stiff and, if bumped in the middle of the night, would jolt me awake in a flash of pain. A return trip to my doctor didn’t yield much except a recommendation to see an Orthopedist specializing in hands. The Orthopedist, in turn, sent me off to get an MRI that – surprise surprise – confirmed that my finger was swollen and nothing else! Sea creatures sometimes carry a variant of the TB virus on their skins. The urchin spine had evidently worked its way into my finger, penetrating the nerve sheath and infected it with the virus.

His recommendation was surgery to open up the entire finger in a “saw tooth” cut. This would allow him to inspect the nerve sheath for damage, search for the urchin tine, drain and clean it before stitching it back up. This seemed pretty extreme to me, so I sent and e-mail off to D.A.N. They responded within a day and, unfortunately, concurred with the Orthopedic surgeon. While waiting for the operating room to be scheduled I took antibiotics but, like the steroids, they didn’t seem to have much of an impact.

The surgery took about an hour and required general anesthesia. No urchin spine was found; like a guided missile it delivered it’s infection payload and was then absorbed. The extent of the surgery, as well as the pain and swelling afterward, were frankly a bit more than I expected. The picture attached was taken a few days after the surgery.

I hobbled around for a week, hopped up on Vicodin and with a hand so wrapped in bandages that it looked like a club. To my wife’s immense credit I never once heard “I told you so” or a suggestion to curtail my diving.

It’s been about a month since the surgery. The stitches are out and the skin is healing well. The scar tissue, however, makes the finger very stiff and I still can’t bend it fully. The prognosis is good, although it requires daily physical therapy.

No one seems to believe that a small, immobile, non-threatening sea urchin could cause all this grief. Given the “saw tooth” shape of the profile, I’ve taken to giving out a more believable story of how I was bitten by a Great White while saving a small child trapped in a rip current. Even so, you now know the true story!


“Take Away” Lessons
- Always wear gloves, especially when diving through narrow notches in the reef when it’s surgy.
- Watch your buoyancy closely.
- If you get “stuck” by a sea urchin, be sure to remove all tines, then soak the affected area in as hot a solution of water & iodine as possible.
- If you can’t remove the urchin spine get to an ER immediately. Over time the urchin tine will burrow in too deeply to be removed. If treated immediately only a local anesthetic and a small incision will be needed (I know from experience, but that’s another article!) and it will heal quickly.
- Never turn your back on a sea urchin. They may be small and slow, but they are very hazardous!
 
Dang! I hope you're on your way to final recovery. That really sucks. I cover myself head to toe when I dive. Some operators in the Caymans wouldn't let me wear my gloves, so I hid them in my bc pocket and put them on underwater. What a stupid rule.
 
Ouch!!!
Glad to hear you're recovering.

What's interesting is that I recently was talking to a diving doc about urchins, and he specifically recommended not to attempt to remove them. Just soak in hot water and antiseptic, but to leave it alone. In most cases, the process of opening the wound, and digging out the tine does more damage, and leads to infection. Leaving it alone, over time ( maybe a month or two ), the tine will work it's way out.
 
i had my sea urchin experience in Acapulco, very painful... many small needles stuck in my toes.. it healed pretty well though...

fyi, from the books I've read, the most dangerous animal in the ocean, besides the sea urchin, is the box jelly. Other animals may be more venomous, or kill you quicker, but for some reason (ease of getting stung, hard to avoid, prevalence??), experts have declared box jellies "the most dangerous".
 
Ouch - that can be painful. Don't be too sure that wearing gloves will necessarily help either. I've had an urchin go through 5mm gloves, including the hardened rubber fronts, before. It was close to shore and the surge was moving me all over the place during an exit. Even with gloves - it's best not to touch!
 
scottfiji:
fyi, from the books I've read, the most dangerous animal in the ocean, besides the sea urchin, is the box jelly. Other animals may be more venomous, or kill you quicker, but for some reason (ease of getting stung, hard to avoid, prevalence??), experts have declared box jellies "the most dangerous".

Tagging a single critter as "most dangerous" in the ocean is silly. If it were so easy to decide, we'd all know it by now. Here's a list of known contenders for the title, right off the top of my head:

a. oceanic whitetip shark
b. tiger shark
c. great white shark
d. walrus
e. box jelly (Chironex)
f. Pfiesteria (flesh eating bacteria)
g. cone snail
h. saltwater crocodile

These can all kill you fairly quick. I didn't include things that er... work on you slow.
 
I thought Stone Fish were supposed to be bad too - or are they slow?
 
just remember that chicks dig scars!!
 
https://www.shearwater.com/products/teric/

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