If you are very overweight, you will need to lose some weight before you can have a kidney transplant.
You will be weighed and your height will be measured to get your body mass index (BMI).
Your BMI is a measure of how much fat you have and is worked out based on your height and weight.
Some transplant teams have different requirements around BMI. Talk to your transplant co-ordinator about what your BMI needs to be.