Answer
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
You are advised, first of all, to know the characteristics of male secretions so as to decide the fluid that comes out with the urine. Most probably what comes out with urine is wady, which doesn’t necessitate ghusl.
Sheikh Ahmad Kutty, a senior lecturer and an Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada, states:
“Ghusl (complete bath) is obligatory in the event of seminal discharge or ejaculation; this has been defined as the emission that follows sexual intercourse or through intense pleasure after contemplation of sexual activity or masturbation or wet dream. In the event of such a discharge, one must perform ghusl in order to be eligible for Prayer.
Having said this, however, I must add: Most probably what you are referring to in your question is not seminal discharge; it is rather what is known as wady; the rule of wady is different from that of seminal discharge. Wady is a thick, white fluid that comes after urination, or after carrying a heavy weight or following strenuous physical activity; one need not perform ghusl in this case; it is sufficient to wash the genitals and make a fresh wudu’.”
Almighty Allah knows best.
Quioted, with slight modifications, from: askthescholar.com.