b12 injection bruising from Bruise injection? I only recently started T and am worried I messed up. (Intramuscular, left thigh) : r/ftm Possible allergic reaction to B12 – Anyone experience bruising like this

Some patients report it as a less painful alternative because the needle that goes into the fatty tissue just below the skin is thinner and shorter, usually one-half to five-eighths of an inch long

Your doctor can check this by doing a blood test

However, some individualswhether due to conditions like pernicious anemia, gastrointestinal disorders, or the effects of certain surgeriesmay have trouble absorbing enough B12 from food or oral supplements

Individuals seeking fat loss often have contraindications to growth hormone therapy or prefer to avoid systemic hormonal interventions

Thanks for helping to unravel it seems we have some things in common which is why I asked