Are hair extensions and wigs haram?

Why the scholars forbid it

The prohibition rests on a clear narration. A woman came to the Prophet ﷺ saying her daughter's hair had fallen out after illness and asking whether she might join it, and he answered with a curse on the one who joins hair and the one who has it joined:

"May Allah curse the one who joins hair and the one who asks for it to be joined."— Sahih Muslim 2122, from Asma bint Abi Bakr

Shaykh Ibn Baz explains the underlying cause as tazwir — presenting something as other than what it is — and lying. The scholars read the narration as covering every kind of joining, not only human hair. Ibn Baz states plainly that there is no difference between human hair and anything else used to join it, because the prohibition in the authentic narrations is general. He also cites Jabir's report that the Prophet ﷺ forbade a woman to attach anything to her head.

The wig falls under the same ruling, and the scholars treat it as worse. Ibn Baz's reasoning is that a wig is a complete head of hair, not a partial join, so the concealment is greater. Ibn Uthaymeen puts it that the wig is forbidden and enters into the category of joining even if it is not literally a join, because it makes the woman's head appear fuller than it is — so it resembles joining.

The exception for a real defect

All the scholars who forbid it carve out the same exception: removing a defect is permitted. Ibn Uthaymeen states that if a woman has no hair at all, or is bald, there is no harm in her wearing a wig to cover that defect, because removing defects is allowed. He supports this with the Prophet's ﷺ permission for a man whose nose was cut off in battle to take a nose of gold. The principle is that the concession attaches to izalat al-'ayb — removing a fault — not to adornment.

Ibn Baz, by contrast, was asked specifically about a woman whose hair fell out because of treatment for a serious illness, and answered that joining hair and wearing a wig of hair are still not permitted. So the two positions on the extent of the exception are not identical, and the difference turns on whether the loss of hair is treated as a defect being removed or as a condition being managed.

Some details

• Joining with something that is not hair: Ibn Qudamah reports in al-Mughni that if the material is only enough to tie the head, there is no harm, because need calls for it. Beyond that amount, the Hanbali school records two narrations — one that it is disliked but not forbidden, and one that it is forbidden. Ibn Qudamah's own conclusion, following his teacher, is that the prohibition attaches to joining hair with hair, because that is where the deception lies.
• Treatment to regrow hair: Ibn Baz distinguishes treatment from covering. Treating the scalp so that hair returns is permitted; wearing a wig or joining hair is not.
• A wig worn over existing hair for adornment: this is the case the scholars forbid, and Ibn Uthaymeen adds that a husband's permission does not make it lawful, since permission cannot be given in what Allah has forbidden.

If the hair loss is medical

IslamWeb (fatwa 502111) addresses a woman losing hair through a compulsive pulling condition. It rules that joining hair with hair is forbidden even in a case of excuse, but notes that some scholars permitted joining with something that does not resemble hair, such as coloured silk threads, quoting al-Majmu': that tying the hair with coloured silk threads and the like, which do not resemble hair, is not forbidden. On that basis it allows a wig, and says the matter of the wig is lighter than joining hair.

IslamWeb elsewhere (fatwa 325768) states that joining hair is forbidden whether for one day or more, and that hair loss does not make it permissible — but that some scholars were lenient about the wig, and that acting on that view carries hope of no blame, while caution is safer. It also notes (fatwa 359962) that joining with human hair, or with impure hair, is not permitted, and that placing pure hair from a non-human source is a point of disagreement, with avoidance being the safer course.

For men

The ruling is stricter. Shaykh Salih al-Fawzan, quoted by IslamWeb (fatwa 386020), said a man may not wear a wig under any circumstances, while a woman with no hair at all may, because she is in need of it. IslamWeb adds that baldness in men is neither rare nor considered disfiguring — the four rightly-guided caliphs were all bald except Abu Bakr رضي الله عنه — and that baldness was counted among the marks of leadership, so it is not to be measured against a severed nose.

Key takeaways

• Joining hair to hair is forbidden, and the wig is treated as more serious than a partial join by Ibn Baz and Ibn Uthaymeen.
• The exception is covering a defect, not adding beauty: a woman with no hair at all may wear a wig on the reasoning of Ibn Uthaymeen and al-Fawzan.
• Treating the scalp to regrow hair is permitted; covering it with a wig is a separate matter.
• A husband's permission does not make a forbidden adornment lawful.
• For men the prohibition is absolute, with no exception for baldness.

Further reading

• Ibn Qudamah, al-Mughni
• Ibn Baz, Majmu' Fatawa wa Maqalat
• Ibn Uthaymeen, Majmu' As'ilah Tuhimm al-Usrah al-Muslimah

And Allah knows best.