Is it permissible for a man afflicted with alopecia universalis, who has completely lost the hair on his head, his eyebrows, and his eyelashes, to wear a wig, knowing that he does not intend to deceive thereby, and is his condition considered a defect that justifies this?

If a person is afflicted with baldness and has completely lost their head hair, it is permissible for them to wear a wig, as this does not fall under the prohibited act of hair extensions. However, if there is still hair on the head, a wig is not permissible, but hair transplantation is. Sheikh Ibn Uthaymeen holds the view that a wig is permissible for someone whose head has no hair to cover a defect, not to enhance beauty or increase hair length. This is because it conceals a flaw and does not add beauty. Therefore, if you are suffering from alopecia universalis, there is no objection to wearing a wig.