Sorry to be a pain but, may I ask why, when we have injections of B12 at Dr's that they always alternate sides?
I'm right handed & find it way easier to SI into my right upper leg muscle than my left. There is no way I can inject into my arm as the nurse at surgery does.
Just thought I'd ask as I'm currently SI daily in my right upper leg.
Daft as it sounds, my legs have no fat at all as I used to play football loads, just find my right leg easier & wondered why nurse alternates. Can it cause muscle damage?