Ramadan Fasting Rules: What Breaks Your Fast & What Doesn't

1 Oct 2026 • 8 min read • Ramadan Guide

Every Ramadan, millions of Muslims fast from dawn to sunset — but small doubts keep coming up: does an eye drop break the fast? What about swallowing toothpaste foam? And what should you do if illness stops you from fasting altogether?

This guide answers the most common questions about Ramadan fasting rules in plain English. It follows the general position of mainstream scholars, but note this is an educational article, not a fatwa: for your personal situation, consult your local imam or scholar.

What Breaks the Fast

Scholars generally agree that these actions break the fast and require the day to be made up later (qada), provided they are done intentionally and knowingly:

• Eating or drinking anything — even a small amount, done deliberately during fasting hours.
• Intentionally swallowing something from outside the body — for example food, drink, or medicine that reaches the stomach.
• Intentional vomiting (deliberately causing it) — scholars generally consider this to break the fast.
• Smoking — including cigarettes and vaping, since smoke and vapour enter the throat.
• Sexual activity and deliberate ejaculation during fasting hours — these break the fast; deliberate breaking of the fast this way also requires kaffara (expiation), explained below.
• IV drips and injections that provide nutrition (like glucose) — these are generally treated like food; plain medical injections that are not nutritional are a different matter (see next section).

One reassuring principle: if you eat or drink by genuine forgetfulness, scholars generally agree your fast is still valid — you simply continue fasting. There is no blame on forgetfulness.

What Does NOT Break the Fast

These common worries are widely considered not to break the fast:

• Brushing teeth or using miswak — just avoid swallowing toothpaste or water. Rinse and spit as usual.
• Showering, swimming, or pouring water over the head to cool down — allowed, as long as water is not deliberately swallowed.
• Eye drops, ear drops, and nasal sprays — scholars generally agree these do not break the fast even if a trace reaches the throat.
• Blood tests and blood donation — drawing blood for tests is generally fine; donating a large amount is disliked if it weakens you but does not invalidate the fast.
• Non-nutritional injections and vaccinations — such as flu shots or insulin, since they are not food or drink (scholars generally agree).
• Tasting food without swallowing — for example a cook checking salt, with the condition that nothing reaches the throat.
• Applying cream, oil, kohl, or perfume to the skin, eyes, or hair.
• Swallowing saliva or dust/particles that enter the throat unintentionally.
• Wet dreams — involuntary, so the fast remains valid; just do ghusl before praying.

The guiding idea is simple: the fast is broken by deliberately taking something into the body through the mouth or nose in a food-like way — not by medicine on the skin or unintentional traces.

Taraweeh: The Night Prayer

Taraweeh are the special night prayers prayed after Isha during Ramadan, in which the Quran is recited at length. Most mosques aim to complete the entire Quran over the month, one section (juz) per night.

Taraweeh is a highly recommended Sunnah — not obligatory, but one of the defining blessings of Ramadan nights. The Prophet ﷺ said that whoever stands in prayer during the nights of Ramadan out of faith and hope for reward, his past sins are forgiven. Praying in congregation at the mosque is the beloved tradition, but praying taraweeh at home is also perfectly valid, especially for women, the elderly, or anyone who cannot reach the mosque.

There is no fixed number of rak'ahs that everyone must follow — 8 and 20 are both widely practiced. Keep it easy: even a few rak'ahs with sincere focus are better than none.

Laylatul Qadr: The Night of Decree

Laylatul Qadr is the night on which the first verses of the Quran were revealed. The Quran describes it as "better than a thousand months" (Surah Al-Qadr, 97:3) — one night of worship worth more than a lifetime.

Its exact date is hidden by divine wisdom, but scholars generally agree it falls within the last ten nights of Ramadan, on an odd-numbered night — the 21st, 23rd, 25th, 27th, or 29th. Many Muslims emphasize the 27th night, but the wise approach is to treat all ten nights as precious.

How to seek it:

• Pray extra at night — taraweeh plus tahajjud in the last third of the night.
• Read and reflect on the Quran, even a few pages with understanding.
• Make the dua of Laylatul Qadr: "Allahumma innaka 'afuwwun tuhibbul-'afwa fa'fu 'anni" — "O Allah, You are Pardoning and love to pardon, so pardon me."
• Give charity — even a small nightly donation across the last ten nights guarantees charity on the Night of Decree.
• I'tikaf — if possible, spend the last ten days in seclusion at the mosque, focusing only on worship.

Fidya & Kaffara: When You Can't Fast

Islam is built on ease, not hardship — so the Shariah provides clear alternatives for those who cannot fast:

• Temporary illness or travel: skip the fasts and make them up later (qada), one day for one day, before the next Ramadan if possible.
• Fidya: for those who cannot fast and cannot make up later — such as the chronically ill or the very elderly with no hope of recovery — scholars generally agree they should feed one poor person for each missed day. The amount is usually estimated as roughly the cost of a modest meal in your country; your local mosque can confirm the figure.
• Kaffara (expiation): for deliberately breaking a Ramadan fast without a valid excuse, the expiation is heavier — fasting two consecutive months, or if that is not possible, feeding sixty poor people (scholars generally agree on this order).
• Pregnancy and breastfeeding: mothers who fear harm to themselves or the child are generally permitted to skip fasts and make them up later; your doctor's advice matters here.
• Menstruation: fasting is not valid during menstruation — the missed days are simply made up later, with no penalty.

When in doubt about medical conditions, ask both your doctor and your local imam — one protects your body, the other guides your worship.

Fasting in Europe: Tips for Long Summer Fasts

When Ramadan falls in summer, European Muslims can face fasts of 18–20 hours — a real physical challenge. If you are fasting in London, Berlin, Stockholm, or anywhere with long days, these tips help:

1. Never skip suhoor. A pre-dawn meal of slow-release foods — oats, eggs, whole-grain bread, yoghurt — keeps energy steady for hours. The Prophet ﷺ called suhoor a blessed meal.
2. Hydrate smartly. Drink water in sips between iftar and suhoor rather than gulping litres at once. Add watery foods: cucumber, watermelon, soups.
3. Limit salt and caffeine at iftar and suhoor — both increase thirst during the day.
4. Rest strategically. If you can, shift demanding work earlier in the day; a short afternoon nap helps more than coffee would.
5. Break gently, eat gradually. Dates and water, then Maghrib prayer, then a balanced meal — avoid the fried-food binge that causes bloating and fatigue.
6. Know your local timings. In high latitudes, Islamic centres follow specific fiqh rulings for prayer times — check accurate prayer times for suhoor and iftar and follow your trusted local mosque's timetable.

Long fasts earn long rewards — but Islam never demands self-harm. If fasting endangers your health, the concessions above exist precisely for you.