If a person lost most or all his/her hair due to some illness, then utilizing medication to re-grow the hair will be permissible. Another option of re-growing the hair is by hair transplantation where hair is removed from some other part of the body together with the roots and planted on the head. This is only permissible with one’s own hair and not the hair of any other human being (due to necessity.) [Re:- Fataawa Darul Uloom Zakariyya Pg.337 Vol.7]

In regards to the beard, if the beard naturally doesn’t grow there is no need for hair implantation or utilizing any other method to grow the beard as this will be tantamount to interfering with the natural characteristics on which Allah Ta'aala has created a person which is not permissible. The same ruling will apply to growing the breasts and buttock; meaning that it will not be permissible to undergo any procedure to grow them as this too is tantamount to interfering with the natural characteristics on which Allah Ta'aala has created a person.

AND ALLAH TA’ALA ALONE IN HIS INFINITE KNOWLEDGE KNOWS BEST

ANSWERED BY: Mufti Mohammed Desai 

Date: 25 Dhul Hiujjah 1440 

English Date: 27 August 2019