Confusion before going for hair transplant. Should I stop using Minoxidil?

You need an examination and an understanding of what is possible with surgery and medication.  You need to understand what is possible with a hair transplant surgery.  Medications such as Propecia or Rogaine will NOT affect your surgical results, but it may help with your existing (non-transplanted) hair.  You and your doctor can decide the overall treatment plan which may or may not involve medications.

It is very difficult to comment without seeing your pics but in my opinion, you should keep on using minoxidil  even though it is just increasing the time period of hair on your scalp. As it will help to decrease the requirement of grafts right now. You can have a limited number of grafts now and then if the baldness will progress, then you can have a second sitting at that point of time. This way you can end up with better results in long term.

Many men use minoxidil after a hair transplant. In fact, many different hair growth strategies can be used including minoxidil, finasteride, laser and PRP after a hair transplant. These treatments don't work in everyone but may help a proportion keep existing hair. If you wish to use minoxidil in combination with a hair transplant, be sure to speak to your surgeon. Most surgeons advise stopping minoxidil 5-7 days prior to surgery. It can be resumed 5-8 days post op.