If you're dissatisfied with your current insurance benefits and think your policy needs to be updated for the premium you're paying, you should look to port your health insurance policy.
If you are unsatisfied with the services & support of your current health insurance provider, think of porting your policy.
If you want to upgrade the network hospitals you can access with your insurance coverage, you should port your policy.
If you wish to reduce the waiting period for coverage of your pre-existing diseases.