Hi Thanks for your query Based on your query, my opinion is 1. Menstrual cycle is not related to low white cell count. 2. Irregular cycles are usually suggestive of hormonal imbalance. Causes being perimenopausal age group/ hormonal therapy. 3. If there is amenorrhea for a long time for example in your case 6 months, then menstrual bleed will be quite heavy as it is a withdrawal bleed. If you are in the perimenopausal age group, then not to bother much. 4. However if bleeding persists or is bothering you, then causes of menorrhagia need to be ruled out, like endometrial hyperplasia/malignancy. 5. Low white count can predispose you to infection as these cells are the first line of defence mechanism in the body. So if you are having recurrent infections then you need to get evaluated and take treatment depending upon on cause Hope this helps Regards