With the egg cell puncture, also known as ovum pick-up, the egg cells are extracted from the body. Under an ultrasound view, a thin hollow needle is punctured through the vaginal wall and the tip of the needle is continued into the middle of the first follicle. Now the first follicle is suctioned off with a gentle negative pressure. The egg cell should also be flushed out of the follicle with the liquid that comes into a tube. After this, all follicles are emptied from both sides in this way. The puncture takes an average of 3 to 5 minutes. The puncture can be performed without eliminating the pain, in a so-called "sedation analgesia" or in a short anesthetic.