Welcome at JA.
The testosterone injection is given intramuscularly because this comes in oily preparation.
If accidently you have injected in vessel then please check it with your doctor.
This may act as an embolus & may some time block the circulation at some part of body.
Although this does not happen always.
You should be watchful for weakness ,loss of sensation or abnormal sensation in any part of body.
If this happens then you should consult to your doctor & should have investigations like MRI.
Hope this will help you.
With best wishes.
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