UKC

The last few weeks I have noticed the middle finger on my right hand is, at times, noticeably colder than the other digits. By noticeably I mean significantly colder.

There is no discolouration or evidence of poor blood circulation, I have full articulation and no pain. There are also no other obvious indications of injury.

Google is great but if course all things point to amputation. I'm interested to know if anyone has experienced this before? Or can offer any plausible explanation?

Could it be cold related from winter climbing? Nerve damage from some discreet injury?

Have you been sticking it up at people more than usual? :-D

It sounds to me like it might be oddly localised Raynaud's phenomenon.

Which, if I'm right, doesn't really help because it doesn't seem to be well understood what causes it.  Though it is, apparently, exacerbated by smoking, caffeine, stress and various medicines.

Sounds pretty mild - perhaps some very subtle nerve damage from a bit of frost-nip that you've since forgotten?

I had to read this twice.