Change in the Number of Days of Haidh or Tuhr

1. The number of days of a haidh cycle can change.
2. Similarly, the number of days of tuhr can change.
3. Example (1): Her aadat or regular number of days is 5 days haidh and 25 days tuhr. On the days of haidh she bled for only 3 days and then remained clean for 25 days. Her aadat in haidh insofar as the number of days is concerned, has changed from 5 to 3.
4. Example (2): Her aadat is 5 days haidh and 25 days tuhr. She had her normal 5 days haidh, but she remained clean thereafter for 23 days before another haidh cycle started. Her aadat in tuhr has changed from 25 days to 23 days.

(Manhalul Waarideen)