5. Some vaccinations
Diphtheria, tetanus, pertussis and pneumococcal vaccines can also cause fever. In theory, though, any vaccination can.
6. Stress
Emotional state can affect body temperature. Doctors call this phenomenon psychogenic fever. Most often it occurs in overly impressionable young women, but can affect people regardless of sex and age. If we are talking about prolonged experiences, chronic stress, psychogenic fever is kept within 37-38 °C. With high emotional stress, it can jump over 40 °C.
7. Oncological diseases
Some cancers, such as lymphoma and leukaemia, sometimes cause persistent and unexplained fever.
8. Heatstroke
When exposed to excessive heat, thermoregulatory mechanisms are disrupted and the body can overheat.
9. Undetermined causes
Sometimes the cause of a prolonged asymptomatic fever cannot be determined. In this case, the doctor will diagnose “fever of unknown origin”. With this diagnosis, a thorough examination is carried out to identify the cause, often requiring hospitalisation.
What to do when you have a fever without other symptoms
Your task is to observe your condition and help the body to cope with the internal disturbance that caused the fever. To do this:
rest;
drink more fluids;
stick to your daily routine;
take walks, breathe fresh air;
try to calm down and cope with stress, e.g. avoid watching the news for a while, listen to soothing music, practice slow deep breathing;
if a fever, even a slight one, bothers you, take an antipyretic according to the manufacturer’s instructions.
