Among the unique features of Islam is that it is a comprehensive way of life that includes all aspects of man’s life. One of its characteristics is that it removes hardships and never means to overburden man beyond his/her capability. Regarding istinjaa’, one is required to perform it after any kind of discharge.
Dr. Zulfiqar Ali Shah, Member of the Executive Committee of the Fiqh</span> ;Council of North America and the Religious Director of the Islamic Society of Milwaukee, states: Istinjaa’ is a requirement after urine or other kind of discharge. Whenever you feel that some liquid has come out, then istinjaa’ is required. One can do istinjaa’ with water or wiping three times with tissue paper or from absorbing material. If during the salah, one feels discharge of some liquid, the person should come out of salah and renew istinjaa’ as well as wudu’.
But if it becomes a habit or a chronic problem for each salah, one istinjaa’ and one wudu’ will be sufficient. Allah would not like to make your life miserable by requiring you to repeat istinjaa’ and wudu’ several times for each daily Prayer.