During a mastectomy, the breast tissue is completely or partially removed, depending on the medical indication. In gender reassignment surgery in particular, known as "top surgery", the female breast is transformed into a male breast shape. Special surgical techniques are used that differ from those used for other indications. The aims of the operation are to preserve the sensation of the nipple and areola while adapting the breast shape to a male one, and to use scar-saving techniques. These specific techniques ensure that the natural sensitivity is preserved and the aesthetic result is as scar-free as possible. This differs significantly from other mastectomy procedures, which focus less on aesthetic details.

Thorough preparation is crucial for a successful procedure. Before a mastectomy, you should make sure you have a balanced diet and avoid alcohol, nicotine and blood-thinning medication for at least two weeks before the procedure to minimize the risk of post-operative bleeding. Sufficient rest and relaxation before the procedure are also beneficial. It is important that you inform your doctor of all medications and dietary supplements you are taking. If you need time off work, plan this in good time, as the doctor cannot issue a sick note after cosmetic surgery.