A woman who is menstruating does not pray and does not fast while the blood is with her. This is not a concession she may take or leave — it is the ruling, and the scholars report that the Muslims are agreed on it. She makes up the fasts she missed; she does not make up the prayers.
What the scholars hold
Shaykh Ibn 'Uthaymeen states the position plainly: it is not lawful for a woman who is menstruating or in post-natal bleeding to pray, and the Prophet ﷺ himself pointed to this when he described the woman who menstruates. Ibn 'Uthaymeen adds that the Muslims have agreed that it is not lawful for a menstruating woman to fast or to pray, and that a woman who did either must turn to Allah in repentance.
"Is it not that when she menstruates she does not pray and does not fast?"— Sahih al-Bukhari 1951, from Abu Sa'id al-Khudri
The same ruling is given by Shaykh Ibn Baz and by IslamWeb: a menstruating woman may not fast, and may not pray, and what she does of either during the blood is invalid. The blood itself is the sign — Allah describes menstruation as a harm, and the ruling follows the harm for as long as it is present.
Why the fast is made up and the prayer is not
The two obligations are not treated alike, and the difference is the one 'A'ishah رضي الله عنها described. Ibn Baz quotes her words as the basis:
"We were commanded to make up the fast and were not commanded to make up the prayer."— Shaykh Ibn Baz, quoting 'A'ishah رضي الله عنها
The fasts missed through menstruation remain a debt. Ibn Baz explains that a woman must make up all the days she missed in Ramadan, whether they were from one Ramadan or several, and IslamWeb adds that the make-up is not due immediately — it is owed in the period between one Ramadan and the next, though hastening it and doing it consecutively is better.
The prayers, by contrast, are not made up at all. Ibn Baz states this directly: the prayer is not repeated, because the menstruating woman does not pray in the first place.
When the blood starts and stops
The ruling attaches to the blood, not to the calendar, and the scholars give clear markers for both edges of it.
- If the period begins while she is fasting: the fast of that day is invalid and must be made up. IslamWeb states that if the blood comes even moments before sunset, the fast of that day is not valid and she owes its make-up — and the scholars state this by agreement.
- If the blood comes after sunset: the fast is complete and valid. Ibn 'Uthaymeen corrects a common misunderstanding here: some women think that if the period begins after they have broken the fast but before they have prayed 'Isha, the day's fast is spoiled. He says this has no basis — if the blood comes after sunset, even by a moment, her fast is complete and sound.
- If she merely feels the blood coming but it does not emerge before sunset: her fast is valid and she does not repeat it. Ibn 'Uthaymeen gives the same answer for the ache of an approaching period.
- If she is unsure whether the blood is menstrual: her fast stands, because the default is that she is not menstruating until it is clear to her that she is.
- If she becomes pure before dawn: Ibn 'Uthaymeen explains that if she is certain of purity before Fajr, even by a minute, she must fast that day and the fast is valid — she need not have bathed yet, just as a man who is junub may fast without bathing until after dawn.
The limits of the bleeding
The scholars set a boundary that decides whether the blood is menstruation at all. IslamWeb gives the measure: if the days of blood do not exceed fifteen days, she counts herself as menstruating and does not fast or pray. If the bleeding continues beyond fifteen days, it is treated as an illness-related bleeding (istihadah) that does not prevent prayer or fasting. Ibn Baz gives the same upper limit of fifteen days, and notes that a woman's normal period may lengthen or shorten within it — if her habit is seven days and the blood runs to ten, she still sits out and does not pray or fast.
The lower edge matters too. IslamWeb states that menstruation is not less than a day and a night, and that the interval of purity between two periods is not less than thirteen days. Ibn Baz, however, is cautious about that minimum: he says some held it to be thirteen days but that there is no evidence for it, and that whenever she sees blood she should stop — unless what she sees is yellow or brownish discharge after purity, which is not counted as menstruation.
Discharge after purity
A distinction the scholars draw carefully: yellow or brownish discharge that appears during the days of the period is part of the period and carries its ruling. But the same discharge appearing after she has become pure is not menstruation. Ibn Baz cites Umm 'Atiyyah رضي الله عنها:
"We did not consider the yellowish and brownish discharge after purity to be anything."— Sahih al-Bukhari, from Umm 'Atiyyah
In that case she prays and fasts, and performs ablution for each prayer. IslamWeb gives the same ruling for brownish spots: she prays and fasts unless the discharge is connected to the blood or falls within the days of her habit.
If she prayed or fasted anyway
The scholars are firm here, and they do not treat ignorance as an excuse in a matter she was obliged to ask about. Ibn Baz addresses the case of a woman who fasted and prayed during her period out of ignorance: what she did was an error, she must repent and seek forgiveness, and she must make up the fasts. He adds that if she delayed the make-up until a later Ramadan, she must also feed a poor person half a sa' of the local staple food for each day, along with the make-up fast.
He also addresses the woman who prays or fasts outwardly out of shyness before people. His answer is that she should not put on a pretence of praying; she is excused, and she should simply make it clear that she is excused for a shar'i reason, so that she is not wrongly accused of abandoning the prayer.
Key takeaways
- A menstruating woman does not pray and does not fast while the blood is with her; the scholars report agreement on this.
- She makes up the missed fasts, but not the missed prayers — this is the distinction 'A'ishah رضي الله عنها described.
- The ruling follows the blood: if it begins before sunset the day's fast is invalid and owed; if it begins after sunset the fast is complete.
- Bleeding beyond fifteen days is not menstruation but illness-bleeding, and it does not prevent prayer or fasting.
- Yellow or brownish discharge after purity is not menstruation — she prays and fasts, making ablution for each prayer.
Further reading
- Shaykh Ibn Baz, Majmu' Fatawa wa Maqalat (the sections on menstruation and post-natal bleeding)
- Shaykh Ibn 'Uthaymeen, Risalah fi al-Dima' al-Tabi'iyyah li al-Nisa'
- IslamWeb fatwas 64454 and 240679 on the rulings of menstruation
And Allah knows best.
Sources4
This is a guide to what the scholars have said, not a fatwa. For your own situation, ask a qualified scholar who can hear the details.