If you miss an exam due to illness and withdraw from it, you must provide a doctor's note as proof.

Any reasons cited for missing an exam date, withdrawing after the withdrawal deadline has passed, or interrupting an exam that lasts longer than one day must be reported to the Examination Office immediately and substantiated by uploading the relevant supporting documents to the ICMS portal. In the case of illness, a medical certificate must be submitted certifying that the student is unable to take the exam during the exam period. The relevant supporting documents, medical certificates, etc., must be uploaded to the ICMS portal. To do so, please log in to the portal and fill out the appropriate form for submitting a medical certificate or supporting document under the “Studies and Online Applications” section.

The medical certificate must be uploaded to the ICMS portal no later than the end of the third business day following the exam date or the start of the interruption (Saturday does not count as a business day). The originals may generally be requested for verification within six weeks.

This can be completed using one of the doctor’s forms or using the following template: Form stating inability to take an examination

Requirement to Retake the Exam After Withdrawal
If you withdraw from an exam due to a medical certificate, you are required, depending on the examination regulations, to take the exam during the next semester’s exam period. Depending on the examination regulations that apply to you, the Registrar’s Office will register you for this retake exam. 

Taking Exams Despite Illness
If you are sick or feel noticeably unwell, you should definitely see a doctor. It is your responsibility to determine whether you are fit to take the exam and able to perform at your full capacity. If you take an exam despite a condition you are aware of or a doctor’s note, you assume the risk that you may fail the exam due to your health condition. The exam cannot be retroactively canceled due to illness. If, after taking an exam despite a certified illness, you do not wish to take other exams, it is in your own best interest to have your illness medically confirmed again and to provide proof of it. Otherwise, your inability to take the exam may be questioned—especially if you passed the exam you took—and will likely not be recognized.