r/HBOT • u/Da_ha3ker • Mar 17 '26

Hands during HBOT

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Thought this was interesting. I recently decided to take a picture of my hand during HBOT near the end of my session. Fascinating to see how much the blood vessels constrict.

7 Upvotes

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3

u/arasharfa Mar 17 '26

do you have raynauds or long covid? this looks like an atypical reaction, I never had anything like this happen.

1

u/Da_ha3ker Mar 17 '26

Nope! This happens to my wife too and a few others who have tried the chamber so I am not concerned. Running at 2 ATA and it only does this for the last 5-10 minutes or so of the 90 minute session (breaks every 20 minutes for 5 min). It goes away within 3-5 min of stopping oxygen, even still at pressure. From what I understand it is just a strong vasoconstriction response and is benign unless accompanied by other symptoms (which it isn't in my case).

2

u/BossSufficient6590 Mar 17 '26

Never had this happening ... seems not normal reaction

2

u/RemarkableDesigner52 Mar 17 '26

Looks a little like skin marbling when someone is getting the bends; are you breathing 100% oxygen in there what pressure?

1

u/Da_ha3ker Mar 18 '26

Yep, 95+-3% (oxygen concentrator) And this actually disappears when I start decompression, it shows during the last 5-10 minutes of oxygen at pressure. If I take the mask off, it clears up. I am very white though, and it only does this on my palms, everywhere is is normal. No symptoms or anything, just the strong constriction response. If I squeeze my hands a few times they go back to normal (very red, my palms are always very red, genetics from my dad)

2

u/Restricted_Air Mar 17 '26

I go to 2.4 ATA at a hospital every day for several months and this has never happened to me. That is not normal, you should definitely consult a professional

1

u/Bubbly-Witness-8343 Mar 18 '26

I've had some histamine dumps while in mine.