Is it safe to get more than one vaccine in the same limb (arm or leg)?

Yes, getting more than one vaccine in the same arm or leg is safe for both children and adults. For example, babies get two vaccines in one thigh muscle and one in the other at two months of age. Also, some vaccines go into the muscle, and some go into the subcutaneous tissue, so while they are given in the same limb, they are not given at the same injection site. For example, a tetanus-diphtheria (Td) vaccine goes into the muscle of your upper arm, and the measles, mumps, and rubella (MMR) vaccine goes into the tissue in the back of your arm. 

 

Vaccines are tested and approved to be given at the same time as other vaccines. This does not increase the risk of side effects or decrease the effectiveness of the vaccines. If you have questions or would like vaccinations given in different arms or legs, ask the health care provider who is giving the vaccine.