Can the vaccine affect my diabetes?

The COVID-19 vaccine is generally considered safe for people with diabetes, and it is strongly recommended that people with diabetes get vaccinated because of their increased risk of severe illness from COVID-19.

People with diabetes, both type 1 and type 2, are at increased risk of serious complications if they contract COVID-19. This includes an increased risk of hospitalization, serious illness, and death. Vaccination is an important measure to reduce these risks.

Some people with diabetes have reported that their blood sugar levels may temporarily increase after vaccination. This may be due to the body’s immune response to the vaccine, leading to an increased stress response and potentially higher blood sugar levels. It is important to monitor your blood sugar levels closely in the days following vaccination and, if necessary, adjust your diabetes treatment plan in consultation with your doctor.

The most common side effects of COVID-19 vaccines, such as pain at the injection site, fatigue, fever, and muscle aches, are usually mild and resolve within a few days. Although side effects such as fever can occur, they usually do not have a long-term effect on diabetes management. However, it is possible that temporary symptoms such as fever may affect your blood sugar levels.

If you have diabetes, it is wise to consult your doctor before having the vaccine. Your doctor can advise you on monitoring your blood sugar levels and possible adjustments to your medication or insulin dosage after vaccination.

Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9521442/

Author: Prof. Dr. Dirk Devroey - Latest update: 2022-12-01 - Copyright: Clinifacts 2025