Diabetes is no reason to avoid a hair transplant. Before you start treatment, you should visit your GP to ensure that you have a well-controlled blood sugar level. It is advisable to have a stable blood sugar level for at least 10 days before the operation. Don’t forget to take your medication regularly and make sure you have a balanced diet. The only aspect that can affect hair transplantation is that the healing process of diabetics is slower and can therefore also increase the risk of infection, so you should pay close attention to the above aspects.