What Doesn’t Break the Fast?
Things that do not invalidate the fast
- Eating or drinking by genuine forgetfulness (Sahih al-Bukhari 1933).
- Rinsing the mouth and nose in wudu, without exaggeration while fasting (Sunan Abu Dawud 142).
- Brushing the teeth or using a miswak, taking care not to swallow.
- Bathing, swimming and cooling the body.
- Tasting food on the tongue without swallowing, permitted by many scholars for a cook out of need.
- A wet dream, and being in a state of major impurity at dawn — ‘A’ishah and Umm Salamah reported the Prophet ﷺ would begin the fast in that state and then bathe (Sahih al-Bukhari 1926).
- Applying kohl, perfume, cream or eye drops, according to the majority.
- Unintentional vomiting.
Practical takeaway
Anything that is not eating, drinking, marital relations or their equivalents generally leaves the fast intact. Where a matter is genuinely disputed, ask a scholar rather than guessing in either direction.
Attribution: the rulings summarised here are the positions recorded in the classical schools and the well known hadith collections. They are presented for information, not as a fatwa. For your own situation, ask a qualified scholar in your community.
Do not confuse discomfort with invalidation
Feeling hungry, swallowing ordinary saliva, sleeping during part of the day or having a non-voluntary dream does not by itself invalidate a fast. Other cases such as injections, drops or medical procedures require attention to what enters the body and to the legal opinion followed.
When uncertain
Do not break a fast merely because an online list makes an ambiguous procedure sound doubtful. Ask a qualified scholar with the exact medical details, and ask a clinician about the health consequences separately.
Frequently asked questions
Does using an inhaler break the fast?
Scholars differ. Many contemporary councils permit metered inhalers as a medical necessity; others advise making up the day. Ask your own scholar and never stop essential treatment.
Does crying or wearing perfume break the fast?
No, neither affects the validity of the fast.