Using performance-enhancing drugs is not permissible, because it leads to harm that may cause death.

In Islam, beard hair transplants are permissible only for treating defects caused by sickness, accidents, or burns, aligning with the principle of medical treatment. However, enhancing the beard for cosmetic reasons is prohibited as it falls under changing Allah’s creation.

In Islam, wearing wigs is generally prohibited as it falls under cursed hair extensions, but exceptions exist for hair loss due to illness or accidents, allowing wigs to remove a defect.

Islam permits the use of stem cells for medical purposes, provided that their source is ethically and religiously permissible. Stem cells harvested from umbilical cords and spontaneously aborted foetuses are generally allowed, while deliberately induced abortions or cloning for the purpose of obtaining stem cells are forbidden.

While corrective surgeries may be permissible in cases of ambiguous intersex, gender transformation surgeries that aim to change one’s gender from male to female or vice versa are not allowed, as they reflect discontent with Allah’s creation and can lead to significant physical and psychological harm.

It is not permissible to enlarge the breasts to increase beauty, because it is changing the creation of Allah. If the breasts are so small as to cause embarrassment and distress, then there is nothing wrong with enlarging them in ways that will not cause you harm, such as using creams and so on.

The use of artificial wombs in Islam is not clearly permissible or prohibited due to the current lack of evidence and scientific certainty. However, if such technology is proven safe and adheres to strict Islamic guidelines, it may be considered permissible. Key conditions include: ensuring the procedure is free from harm, using only permissible tissues from the husband and wife, and that traditional methods are not viable.