Thank you for your question. This is a very common and tricky question in that every insurance company has set forth their own specific parameters that must be met to deem a procedure 'medically necessary.' In the case of breast reduction coverage, most insurance companies (but not all) require that a minimum of 500g of breast tissue be removed from each side. They generally also require a long documented history of neck, shoulder, and/or back pain, and numerous letters and office note documentation from primary care physicians, chiropractors, orthopedists, dermatologists, and physical therapists attesting to the extent of physical hindrance of a patients large breasts and all failed methods of control (different bra's, physical therapy, medication use for rashes in the inframammary fold, etc...). This is a lengthy process that typically requires an authorization process (and often an appeals process), but unfortunately most of the process is outside the control of the plastic surgeon. If you are interested in having a breast reduction procedure and you believe as though you have a substantial case to warrant medical coverage, the first step is to call your insurance to see what their conditions for determining medical necessity are. Then you should consult with a board-certified plastic surgeon who is well-experienced with breast reduction procedures. Photos will be taken along with a thorough history documenting your symptoms and a claim can be made to your insurance company. I hope you find this helpful and best of luck!