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, sallallaahu ‘alayhi wa sallam, is His slave and Messenger.
Tattooing is Islamically forbidden because the Sharee’ah texts prohibit it and because the scholars stated that the limb on which the tattoo is done becomes impure.
Moreover, tattooing is among the grave major sins because the person who does it is cursed, as we clarified in Fatwa 82394. The same ruling applies to both men and women, rather the prohibition for men is more stressed as stated by An-Nafraawi in his commentary on the Risaalah (treatise) of Ibn Abi Zayd (on Maaliki Fiqh).
As regards baldness and the like, then one may look for a way of treating it without resorting to tattooing, like using permanent dye whose ingredients do not contain an impurity, or by implanting hair in its place, as this is permissible in case of necessity. Indeed, the Prophet permitted the person who had his nose cut off to replace it with a golden nose, as in the Hadeeth reported by Abu Daawood in his Sunan. For more benefit, please refer to Fatwa 87848.
Concerning tattooing, one should not resort to it unless there is no other alternative for treatment, and provided that what is to be treated by it is harmful or deforming one’s appearance; in which case, there is no objection to using it in treating deformity, Allaah willing, because necessities make permissible what is prohibited. Allaah Says (what means): {He has explained in detail to you what He has forbidden you, excepting that to which you are compelled.}[Quran 6:119]
Allaah Knows best.