http://islamqa.com/en/ref/47664/hair transplant
Fatwa No. : 97320
Fatwa Title : Wants to make a wig for her bald non-Muslim mother
Fatwa Date : 11 Jumaadaa Al-Aakhirah 1428 / 27-06-2007
Question
Assalamu alaykum my mother is a non muslim, she as asked me to help her make a wig for herself to wear. my mother has hair on the botton of her head but is almost completely bald on the top, this is not a tempory condition, she as been in this condition for twenty years, with no improvment, just worsening. am i allowed to her her make the wig? jazzakallah joe
Fatwa
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
There is a difference of opinion among the scholars on the ruling of wearing a wig, some permitted it and some prohibited it. The view we adopt here in Islamweb is that wearing a wig is permissible with the conditions which we mentioned in Fatwa 90912, especially if wearing it is in order to cover a malformation, because removing a malformation is permissible, and it is for this reason that the Prophet allowed the person whose nose is cut to replace it with a golden nose.
Based on the above-referred Fatwa, it is permissible for you to make a wig for your mother to wear.
For more benefit, please refer to Fatwa 87229.
Allaah Knows best.
Fatwa answered by: The Fatwa Center at Islamweb
Assalaamu alaikum,
Fatwa No. : 90912
Fatwa Title : Woman wearing a wig
Fatwa Date : 20 Thul-Qi'dah 1426 / 21-12-2005
Question
Can ladies wear wig? And can they modify it by cut short, curling, straightening, coloring, etc.?
Fatwa
All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
It appears, Allaah Knows best, that it is permissible to wear a wig if the following conditions are met:
1- It must be pure; there is no harm in putting pure hair on one's head, especially when there is a need for it, like a woman beautifying herself for her husband.
2- It must not be joined to one’s hair; some scholars concluded from the narration which reads: "Allaah has cursed the woman who joins the hair and the woman to whom the hair is joined…" [Al-Bukhaari and Muslim], that it is permissible to put hair on one’s head without joining it to the original hair.
3- It must not resemble the shape of dissolute or non-Muslim women. Also, it must not resemble men’s hair; since if it is permissible to wear the wig, then there is no harm in trimming it, straightening it and colouring it, but it should not be shortened to an extent that it resembles men's hair.
However, it is more appropriate for a woman who does not need to wear such a wig to avoid it.
Allaah Knows best.
Fatwa answered by: The Fatwa Center at Islamweb
I cant seen to find the fatwa for extensions...so i may have got that wrong. If its down to an illness, then its permissable to use false hair.