Thank you for your question.
The most likely reason why you are having recurrent urinary tract
infections is because your blood glucose
levels were very high after surgery like you mentioned.
Whenever the blood glucose levels go very high one can have urinary tract infections.
These infections are very common in diabetics.
The most important thing, therefore, in your case is that you MUST at all costs keep your blood glucose in the desired range.
The head itching seems to be something that is unrelated however I must mention that with diabetes
that is not controlled one can get fungal infections very easily.
With the itching of your scalp
that you are describing I would like to rule out a fungal infection of your scalp such as "tenia capitis".
I would like that you should preferably be examined by a skin doctor (dermatologist
) to determine whether you have a fungal infection in your scalp that is causing your problem.