Does the discharge of thick, white fluid resulting from inflammation, or from watching TV series, necessitate Ghusl, or only Wudu'?

Summary: If these discharges are emitted without lust, they are usually pure vaginal moisture, but they nullify ablution. If you are certain it is madhy, then ritual cleansing (istinja') and ablution are required. If it is semen (mani), then a full ritual bath (ghusl) is required. If you are in doubt as to whether it is madhy, semen, or vaginal moisture, you may choose the ruling. These discharges do not invalidate fasting.