Hi there Luv.
I hear you. Its been 4-5 months & you have not visited a doctor!?
Was there any injection of any sorts given in that region 5 mths ago before the onset of said indentation?
Is there any family history of any blood or genetic disorders of any sorts esp of a condition called morphea
Dermatology is a visual field; You could either upload a clear digital photograph of the lesion onto this site or better still visit a deramtologist on the ground nearest you.
In my august opinion, a skin biopsy
will certainly be needed besides some blood tests.
Cheeers & Good Luck IN getting rid of it & wish you a nice round butt in the future as you so desire!
Dr Praveen Rodrigues MD
, Cosmetologist, Venereologist
Vikram Hospital, Bangalore