With the change of seasons, many people are catching colds and fevers. I recently had to take a few days off for gastroenteritis and went through the entire process of getting a medical certificate for sick leave. I haven’t seen a dedicated post about this on the forums, so I decided to share my experience to help anyone who might need it.

What are Baja Médica and Alta Médica?
Simply put, a Baja Médica is the ‘sick note’ issued by a doctor, certifying that you are temporarily unable to work or attend school for health reasons. Its official name is Incapacidad Temporal. When you’ve recovered, the doctor will issue an Alta Médica, which is a ‘certificate of recovery’ stating you are fit to return to work or school. These documents are crucial for employees claiming social security benefits and for students justifying their absence. Otherwise, your absence could be marked as unexcused, which would be a big problem. This specific process for sick leave differs from obtaining a general [Spanish medical certificate].
How to Apply for a Baja Médica?
There are two main ways to do this, depending on the urgency of your condition:
1. Make an Appointment with Your Family Doctor (GP)
This is the most common method. For non-urgent illnesses like a bad cold or gastroenteritis, you can book an appointment with your family doctor (GP) by phone or through the public healthcare system’s app. During the consultation, describe your symptoms in detail. The doctor will assess your condition and decide if a Baja is necessary. If so, they will print out a Parte de Baja for you on the spot. Remember, this document usually comes in two copies: one for you to keep and the other to be submitted to your company’s HR department within the specified timeframe. This is different from the procedure to [replace a lost medical certificate].
2. Go to the Emergency Room (Urgencias)
If you have a sudden high fever in the middle of the night or an emergency like acute appendicitis, don’t hesitate—go directly to the emergency department (Urgencias) of the nearest public hospital. After treating your condition, the ER doctor can also issue a Baja certificate. The process is similar to visiting your family doctor, but the advantage is you don’t need to wait for an appointment. However, be aware that ER doctors usually only issue temporary, short-term sick leave certificates. For follow-up appointments and extending your sick leave, you will typically need to go back to your own family doctor.
Throughout the process, the doctor will schedule follow-up appointments based on your recovery. During these check-ups, they will assess whether you are fit to return or need to continue resting. Here is a simple table I’ve put together to help you understand the purpose of each document:
| Document Type | Spanish Name | Main Purpose |
| Sick Leave Note | Parte de Baja | To start sick leave; submit to your company or school. |
| Confirmation Note | Parte de Confirmación | Issued during a follow-up if sick leave needs to be extended. Your eligibility for this is covered by your [Spanish health insurance certificate]. |
| Certificate of Recovery | Parte de Alta | To end sick leave and return to work or school. |
Don’t panic if you get sick in Spain. As long as you have your social security card, the whole process is quite clear and standardized. The most important things are to seek medical attention promptly and submit the documents where they are needed on time. If you have any other tips or questions, feel free to leave a comment below! Wishing you all good health, Salud!