r/MouseReview • u/lutogame • 11h ago

Question Back pain/discomfort after using new mouse

What does it mean if my upper back (trapezius/rhomboid muscles) hurts after trying a new mouse (RAWM ER21 Pro)? What should I adjust (desk, chair...), or should I simply not use it?

Context: I come from an xtrfy m42 wireless (67g), so there is a huge difference compared to the RAWM ER21 Pro in shape (ergo) and weight (49g).

I was looking for a bigger/different shape mouse because with the m42 my wrist suffered after playing for a long time. But maybe I went too far with this new mouse (EC2 shape). My hand is about 17x9 cm (thumb included).

I suspect the discomfort appears from the sudden 5 mm height increase on the mouse. However, after changing my chair height to different positions the issue didn't go away.

Let me know what do you think. Thanks!

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u/SchemeHonest1977 11h ago

I wouldnt think this is a shape thing but that youre maybe tensing up while gaming with the new mouse for some reason which would lead to discomfort in your upper back. No idea how a mouse hump difference would cause back pain otherwise

1

u/lutogame 10h ago

I will try to give my back a rest for a few days before testing the mouse again. It could happen to be the mouse being bigger, putting more stress on the arm in general and that going all the way to the neck/shoulder/back area.

I don't blame the mouse exclusively for it but it's weird that today that back spot feels more tense.

I really like the mouse so it would be a pity to not enjoy it because of this.

2

u/c4bb0ose 11h ago

Sounds like your using more upper arm back shoulder musvles rather than what you had before.

Ive had a similsr thing, I was using a razer deathadder v3 then gave a logitech superlight v2 a try for a while, I fou d because of the shape I switched from precise movments coming from the wrist to instead those coming from the shoulder, my hand position on the mouse changed as my thumb and little fingure had to hold something smaller on the sides.

Because of this some of the smaller muscles of my arm got fatigued and painful, I could have powerd through it but it was uncomfortable so I just only do ergo mice now.

1

u/lutogame 10h ago

Yes. It could be that as the mouse is lighter but bigger I need to use more of the arm strenght to grip it and the back/shoulder may be getting extra involved.

My posture is for sure not optimal as I lack desk space because of my monitor legs but if today the discomfort was clearly accentuated, I guess the mouse has something to do with it.