Does a small amount of vaginal moisture nullify ablution, and what is the difference between it and body perspiration?

Vaginal discharge refers to the transparent secretions of the uterus, which vary among women. It is defined as a whitish fluid oscillating between madhi (pre-seminal fluid) and sweat. Ibn Hazm is of the view that it does not invalidate ablution (wudu), whereas the majority of scholars believe it does, unless it is continuous, in which case the woman performs ablution for each prayer after its time has begun. According to the view that it invalidates ablution, wudu is not required unless one is certain of its emission.