High Temperature (Fever) in Adults

A high temperature, also known as a fever, is a common symptom that occurs when the body's internal temperature rises above its normal range. In adults, a normal body temperature is typically considered to be around 98.6°F (37°C), but it can vary slightly from person to person.

Causes of Fever in Adults

• Infections: Bacterial, viral, or fungal infections can cause fever, such as pneumonia, influenza, or urinary tract infections.
• Vaccinations: Some vaccinations, like the flu vaccine, can cause a low-grade fever as a side effect.
• Autoimmune disorders: Conditions like rheumatoid arthritis or lupus can cause recurring fevers.
• Cancer: Certain types of cancer, such as lymphoma or leukemia, can cause fever.
• Medications: Some medications, like antibiotics or blood pressure medications, can cause fever as a side effect.
• Environmental factors: Exposure to extreme temperatures, humidity, or altitude can cause fever.

Symptoms of Fever in Adults

• High body temperature (usually above 100.4°F or 38°C)
• Chills or sweating
• Headache or muscle aches
• Fatigue or weakness
• Loss of appetite
• Nausea or vomiting
• Dehydration

Types of Fever in Adults

• Low-grade fever: A mild fever, usually below 102°F (39°C)
• High-grade fever: A more severe fever, usually above 103°F (39.4°C)
• Remittent fever: A fever that fluctuates throughout the day
• Relapsing fever: A fever that recurs after a period of normal temperature
• Continuous fever: A fever that remains relatively constant over time

Treatment and Management of Fever in Adults

• Rest and hydration: Getting plenty of rest and drinking fluids to help the body recover.
• Medications: Over-the-counter medications like acetaminophen (Tylenol) or ibuprofen (Advil, Motrin) can help reduce fever.
• Cool compresses: Applying cool compresses to the forehead, wrists, or neck to help lower body temperature.
• Antibiotics: If the fever is caused by a bacterial infection, antibiotics may be prescribed.

When to Seek Medical Attention

• Fever above 103°F (39.4°C)
• Fever that lasts for more than 3 days
• Severe headache or stiff neck
• Difficulty breathing or shortness of breath
• Chest pain or coughing up blood
• Severe abdominal pain or vomiting
• Confusion, disorientation, or seizures