What are the causes of a fever and how can you deal with it properly?

What Causes a Fever?

Body temperature rises when the body tries to defend itself against an illness or is affected by external factors. The most common causes include:

Viral infections, such as influenza or the common cold, where the body raises its temperature to help fight the virus.

Bacterial infections, such as respiratory or urinary tract infections, often accompanied by other symptoms like pain or fatigue.

Non-infectious inflammation, such as certain joint diseases, where the inflammatory response leads to a temperature rise.

Reaction to some medications or vaccines, usually temporary and subsiding within a short time.

Exposure to extreme heat, such as heat stress or heatstroke from staying too long in high temperatures.

In most cases, fever indicates that the body is fighting an issue, but medical follow-up is advised if it persists for a long time or is very high.

Fever in Women Without an Apparent Cause

Women may notice a slight rise in temperature at certain times without any obvious illness. This is often linked to hormonal changes during the menstrual cycle, particularly after ovulation due to increased progesterone.

Hot flashes during menopause are also a major cause of sudden warmth, as decreased estrogen affects the body’s temperature regulation. Additionally, overactive thyroid or pregnancy can cause a continuous rise in basal body temperature.

Why Fever May Increase at Night

Some people experience higher fevers at night, partly due to the body’s circadian rhythm, where natural temperature peaks in the evening. The immune system also tends to be more active at night, releasing chemicals that raise temperature to fight infection.

Other contributing factors include:

1. Night sweats from chronic inflammation
2. Certain cancers, such as lymphoma
3. Heavy bedding that prevents the body from cooling naturally

Fever with Chills or Cold Extremities

Feeling cold or shivering while having a fever occurs because the body is raising its temperature to fight illness, making the surrounding environment feel colder.

Cold hands and feet during fever happen because blood is directed to vital organs like the heart and brain, reducing flow to the extremities to retain body heat.

Can Stress Cause Fever?

Yes, psychogenic fever can occur. Chronic stress or intense emotional episodes may raise body temperature in some people due to hormonal effects on temperature regulation.

Fever vs. Heatstroke

Fever: Internal response raising body temperature to fight illness.

Heatstroke: Body fails to cool itself due to external heat, considered a medical emergency as it can damage organs.

When Is Fever Dangerous in Adults?

Fever is concerning when it exceeds 39.4°C (103°F) or persists for more than three days without improvement. Seek emergency care immediately if accompanied by:

1. Severe headache
2. Stiff neck
3. Unexplained rash
4. Shortness of breath
5. Confusion or mental disorientation

These signs may indicate serious conditions like meningitis or severe systemic infection requiring urgent treatment.

How Is Fever Diagnosed?

Diagnosis begins with accurately measuring temperature using a digital thermometer. If fever persists or has an unknown cause, a doctor may perform:

1. Complete blood count (CBC) to detect infection or inflammation
2. Urine tests
3. Throat swabs
4. In complex cases, chest X-rays or other imaging to rule out abscesses or hidden tumors

How Is Fever Treated?

Treatment focuses on addressing the underlying cause and relieving discomfort:

1. Fever-reducing medications like paracetamol or NSAIDs (e.g., ibuprofen) help control the brain’s temperature set point.
2. For bacterial infections, antibiotics target the infection.
3. Viral infections typically run their course, with rest and hydration supporting the immune system.

Fastest Way to Reduce Fever at Home

1. Use lukewarm, not cold, water compresses on blood-flow areas such as the neck, armpits, and groin to gradually remove heat.
2. Wear light clothing and stay in a well-ventilated room.
3. Drink plenty of water or fluids to replace what is lost through sweating, helping the body restore thermal balance.

Drinking cold water can hydrate the body and prevent dehydration but does not treat the root cause of fever. Focus on fluids to maintain balance.

Conclusion

Fever is a vital sign of your body’s alertness and ability to tackle health challenges. Following quick home cooling measures and using appropriate medications under medical supervision ensures you overcome the episode with minimal discomfort. Do not hesitate to seek professional help if your body requires more specialized intervention.

If you need medical consultation, you can easily book an appointment via Vezeeta.