Istihadha

One type of blood which is seen by women is called Istihadha and a woman in that state is called Mustahadha.

398. Istihadha is usually yellowish and cold and is emitted without gush or irritation and is also not thick. It is, however, possible that at times the color of the blood may be red or dark, and it may also be warm and thick and may be issued with gush and irritation.