An intermesntrual bleed could indicate a number of conditions, I woukd have also liked to know your sexual status, age and whether or not you are on contraception
But based on the provided information the major categories to be suspected are:
-Abnormalities within the uterus
(eg. Fibroids, polyps, etc.)
-Abnormalities of the inner lining of the uterus (eg. Endometriosis
, endometrial hyperplasia
Please consult your doctor and consider the above mentioned conditions, rule them out with the help of a bimanual examination, speculum examination, blood test
to check on hormone levels, transvaginal ultrasound
, vaginal swab test, urine examination.
Hope this helps.