As usual, we are explaining the reasons for 'head problems', not by medical theory, but by our Segment Numerological theory.

Problems in the head like 'scars due to injuries', 'pains', 'sprain in the neck' 'some kind of headaches' etc, might have been there to persons, only if they are having single numbers of 1 and 9, or it's combinations, anywhere in their Birth Segment, Calling Name(s) and Name Segment. 

The problems will be more, if 1 or 9 repeats more than ones.

Likewise, the problems will be there if 1 and 9 are associated with 5.

Anybody, who is NOT having single numbers of 1 and 9, or it's combinations, will not have any problems in their head.

It can also be prevented and treated by balancing the Number Segments.