Wudu (ablution) is nullified by several actions that break the state of ritual purity. These include:

1. Natural Discharges:
   • Urination or defecation (from the front or back).
   • Passing gas (flatulence).
   • Deep sleep where a person loses consciousness and does not retain control over their bodily functions.
   • Bleeding (excessive bleeding from an injury or menstruation).
   • Vomiting (especially if it is a large amount or a forceful type of vomiting).
2. Sexual Activity:
   • Intercourse (penetration) or manual stimulation leading to ejaculation.
   • Masturbation.
   • Discharge of sexual fluids (whether from men or women).
3. Loss of Consciousness:
   • Fainting or unconsciousness for any period, even if it’s just a momentary lapse.
   • Insanity or extreme intoxication (from alcohol or drugs).
4. Touching the Private Parts:
   • Touching the private parts (for both men and women) with the palm or fingers, whether one’s own or someone else’s, with direct skin contact. This is particularly considered nullifying in the Hanafi school of thought, though there is some disagreement among other schools.
5. Excessive Discharge:
   • Any other major discharge from the body that removes a person from the state of purity, such as bleeding from a wound or pus.
6. Other Physical Actions:
   • Eating or drinking after wudu can also nullify wudu in some interpretations, though this is primarily related to the Hanafi school of thought.
   • Vomiting can nullify wudu, especially if it’s excessive or forceful