You only need a doctor’s note if you are unable to work and are ill for longer than seven calendar days. Your employer will provide you with an SC2 self-certificate form for shorter periods of illness.
How fit notes are used
The fit note allows doctors to advise that patients are “may be fit for work taking account of the following advice” or “not fit for work”.
Doctors can record details of the functional effects of their patient’s condition – so individuals and employers can consider simple changes to the work environment or job role or other steps to help the employee return to work earlier.
The fit note also helps employers to support their employees back to work as soon as possible, so that they retain skills that are critical to business success.