You will donate until the employees of Berliner Samenbank GmbH inform you that you have provided sufficient samples.
As a rule, you will donate until you have provided 100 samples. Depending on the quality on the day of donation, each donation can yield three to six samples, so that 100 sperm samples does not mean 100 donations. Normally, this leads to a donation period lasting between one and two years, where you will participate, as a rule, in one donation appointment per week.
Please take care that, for each of these donation appointments, a period of abstinence of three to five days must be observed, i.e. the last ejaculation must have been three to five days before the time of the appointment.