If you are sick and off work for more than seven days, your employer will normally ask you to provide a medical certificate from your GP.
When you need a certificate will also depend on your employer's company policy on sick leave (or sickness absence). This policy should tell you how many days you can be off sick before you need a note.
To find out about your employer's policy:
- ask your team leader or supervisor, or
- speak to someone from your human resources (HR) or personnel department