Internal Medicine Conditions We Treat
Comprehensive Care for Your Health
Fever is a temporary increase in body temperature, commonly occurring when the immune system responds to an infection or illness. It is a natural defence mechanism that helps the body fight infections caused by viruses, bacteria, and other microorganisms.
A body temperature of 38°C (100.4°F) or higher is generally considered a fever. However, normal body temperature can vary depending on age, time of day, and the method used to measure it.
Fever may occur with symptoms such as chills, sweating, headache, muscle aches, weakness, and fatigue. While many episodes are associated with common infections, persistent or recurring fever may require medical evaluation to identify the underlying cause.
Understanding the different types of fever, associated symptoms, and available treatment approaches can help individuals recognise when medical attention may be necessary.
Experiencing persistent fever or concerned about recurring episodes? Consider consulting an experienced general physician near you in Gurgaon at Miracles Healthcare for an appropriate evaluation and guidance.
Fever can be classified according to its temperature pattern, duration, and underlying cause. Common patterns include:
Continuous Fever: In continuous fever, body temperature remains elevated throughout the day, with relatively small fluctuations. It may occur with certain bacterial infections and other illnesses.
Intermittent Fever: Intermittent fever is characterised by episodes of elevated body temperature followed by periods when the temperature returns to normal. It can occur in conditions such as malaria.
Remittent Fever: In this pattern, body temperature fluctuates during the day but does not return to normal levels. It may be associated with different infectious conditions.
Relapsing Fever: Relapsing fever involves repeated episodes of elevated temperature separated by periods without fever. Certain infections can produce this pattern.
Low-Grade Fever: Low-grade fever refers to a mild elevation in body temperature. It may occur during common infections and inflammatory conditions.
High-Grade Fever: High-grade fever refers to a significant increase in body temperature. It may be accompanied by chills, sweating, headache, and general weakness and should be assessed in the context of other symptoms.
Fever can cause several physical changes as the body responds to an infection or underlying illness. The symptoms may vary depending on the cause and severity.
Common symptoms include:
Increased body temperature: The body feels warmer than usual, particularly around the forehead and neck.
Chills and shivering: A person may experience cold sensations or shivering despite having an elevated temperature.
Excessive sweating: Sweating may occur as the body temperature begins to decrease.
Headache: Fever may be accompanied by mild or severe headaches.
Muscle and body aches: Muscle pain and joint discomfort may occur during infections.
Fatigue and weakness: Reduced energy, tiredness, and general weakness are common.
Loss of appetite: Some individuals may experience reduced hunger or changes in eating habits.
Dehydration: Increased fluid loss may cause thirst, dry mouth, and reduced urination.
Other symptoms, including cough, sore throat, runny nose, vomiting, diarrhoea, and skin rashes, may occur depending on the underlying condition.
Fever develops when the body’s temperature-regulating system responds to infection, inflammation, or certain other medical conditions.
Some common causes include:
Viral Infections: Viral infections are among the common causes of fever. Influenza, common cold, and other viral illnesses may cause elevated body temperature along with fatigue, cough, headache, and body aches.
Bacterial Infections: Bacterial infections can trigger fever as the immune system responds to harmful microorganisms. Urinary tract infections, pneumonia, and certain throat and gastrointestinal infections are possible causes.
Mosquito-Borne Infections: Dengue, malaria, and chikungunya can cause fever, particularly in regions where these infections are prevalent. Additional symptoms may include headache, body aches, chills, and skin rashes.
Gastrointestinal Infections: Infections caused by contaminated food or water may result in fever, diarrhoea, vomiting, and abdominal discomfort.
Inflammatory Conditions: Certain autoimmune and inflammatory disorders may cause persistent or recurring fever due to immune system activity.
Medication-Related Fever: Some medicines may cause fever as an adverse reaction. Medical assessment is necessary to determine whether a medication could be responsible.
Heat-Related Illnesses: Exposure to extreme heat can cause heat-related illnesses. Heatstroke is a medical emergency characterised by a dangerous rise in body temperature and requires immediate medical attention.
Fever diagnosis involves identifying the possible cause of elevated body temperature. The evaluation depends on the patient’s symptoms, medical history, physical examination, and clinical findings.
Common diagnostic approaches include:
Physical Examination: The doctor may assess body temperature, pulse, blood pressure, breathing rate, and other vital signs. Examination of the throat, ears, chest, abdomen, and skin may help identify possible signs of infection.
Medical History: The doctor may ask about the duration of fever, associated symptoms, recent travel, exposure to infections, existing medical conditions, and current medications.
Blood Tests: A complete blood count (CBC) and other relevant blood investigations may be recommended to assess blood cell levels and identify findings that could suggest infection or inflammation.
Urine Tests: Urine examination and urine culture may be advised when a urinary tract infection is suspected.
Infection-Specific Tests: Depending on the symptoms and clinical findings, tests for malaria, dengue, typhoid, influenza, COVID-19, or other infections may be recommended.
Imaging Investigations: Chest X-rays, ultrasound, or other imaging investigations may be considered when the clinical assessment suggests an infection or abnormality involving specific organs.
Not every person with fever requires all these tests. Investigations are selected according to individual clinical requirements.
Fever treatment depends on its underlying cause, severity, associated symptoms, and the patient’s overall health. The primary approach involves managing discomfort, maintaining hydration, and treating the condition responsible for the fever.
Common treatment approaches include:
1. Fever-Reducing Medication
Medicines such as paracetamol may be recommended to reduce fever and relieve associated discomfort. The dosage should be determined according to age, weight, medical history, and medical advice.
2. Treatment of Underlying Infection
When fever is caused by a bacterial infection, antibiotics may be prescribed if clinically indicated. Antibiotics are not effective against viral infections and should not be taken without a prescription.
3. Adequate Fluid Intake
Drinking sufficient water and other appropriate fluids helps replace fluid lost through sweating. Oral rehydration solutions may be recommended when fever is accompanied by vomiting or diarrhoea.
4. Adequate Rest
Rest can help the body recover and manage fatigue and weakness associated with fever.
5. Comfortable Environment
Wearing lightweight clothing and maintaining a comfortable room temperature may help reduce discomfort. Excessive covering and extreme cooling methods should be avoided.
6. Monitoring Body Temperature
Regular temperature monitoring can help track changes and assess whether symptoms are improving or worsening.
Persistent fever, worsening symptoms, or recurring episodes should be evaluated by a healthcare professional.
Certain factors may increase the likelihood of developing infections that cause fever or experiencing complications.
These include:
Weakened immunity: People with reduced immune function may be more vulnerable to infections.
Young age: Infants and young children may develop fever due to various childhood infections.
Older age: Elderly individuals may be at increased risk of complications from infections.
Chronic medical conditions: Conditions such as diabetes, kidney disease, and heart disease may influence infection-related risks.
Poor hygiene: Inadequate handwashing and unsafe food-handling practices may increase exposure to harmful microorganisms.
Mosquito exposure: Living in or travelling to areas where mosquito-borne infections are prevalent may increase the risk of dengue, malaria, and chikungunya.
Occupational exposure: Working in healthcare settings or crowded environments may increase exposure to infectious illnesses.
Incomplete vaccination: Missing recommended vaccinations may increase the risk of certain preventable infections.
Although not every cause of fever can be prevented, certain hygiene and lifestyle practices may reduce the risk of infections.
Maintain Hand Hygiene: Wash your hands regularly with soap and water, particularly before eating, after using the washroom, and after contact with potentially contaminated surfaces.
Follow Food and Water Safety Practices: Drink clean water and consume properly cooked food. Wash fruits and vegetables thoroughly before eating.
Follow Recommended Vaccination Schedules: Vaccination helps protect against several infectious diseases. Follow the immunisation recommendations applicable to your age and health condition.
Prevent Mosquito Bites: Use suitable mosquito repellents, wear protective clothing, and prevent stagnant water from collecting around your home.
Maintain Personal Hygiene: Regular bathing, clean clothing, proper sanitation, and respiratory hygiene can help reduce exposure to infectious microorganisms.
Avoid Exposure to Contagious Infections: Follow appropriate precautions around individuals experiencing contagious illnesses. Cover your mouth and nose while coughing or sneezing.
Maintain Healthy Lifestyle Habits: Eat a balanced diet, stay physically active, get adequate sleep, and maintain sufficient fluid intake to support overall health.
Seek Timely Medical Evaluation: Persistent, recurring, or unexplained fever should not be ignored. Medical assessment can help identify the underlying cause and determine whether further investigation or treatment is required.
Fever accompanied by persistent fatigue, weakness, body aches, or other symptoms may require medical evaluation to identify the underlying condition. While some episodes improve with supportive care, recurring or prolonged fever should be assessed by a healthcare professional. The evaluation and treatment approach may vary depending on whether the fever is associated with a viral infection, bacterial infection, mosquito-borne illness, or another medical condition.
Miracles Healthcare is a multispecialty hospital in Gurgaon, offering medical evaluation and treatment for fever and related symptoms since 2002. Our team of experienced internal medicine specialists reviews the patient's medical history, assesses associated symptoms, and recommends diagnostic investigations when clinically indicated.
With a multispecialty approach to healthcare, patients can also benefit from support across relevant specialities when fever is associated with other health concerns or requires further evaluation. Our doctors can coordinate care based on individual medical needs.
With our presence across Sector 14, Sector 56, and Sector 82 in Gurgaon, patients can access healthcare services at multiple locations. Our teams aim to provide coordinated medical care, diagnostic support, and appropriate specialist consultations under one healthcare network.
Experiencing persistent fever or unexplained symptoms? Consult an internal medicine specialist near you at Miracles Healthcare for a timely medical evaluation and personalised treatment guidance.
Comprehensive Care for Your Health
Meet our expert team of Internal Medicine Doctors where compassionate care meets expertise.
Inspiring Journeys: True Patient Stories
Miracles Healthcare is a leading multispeciality hospital in Gurgaon. We are committed to providing comprehensive and high-quality medical care across all specialties under one roof.
Learn about the world class health care we provide
Source for Expert Advice and Health Tips
Learn about the world class health care we provide
Fever treatment depends on its underlying cause. Rest, adequate fluids, and doctor-recommended fever-reducing medication may help manage symptoms while the cause is evaluated.
A temperature of 103°F (39.4°C) or higher in adults warrants prompt medical advice, while 104°F (40°C) or above requires urgent medical assessment. Any fever in an infant under 3 months (38°C or higher) needs immediate medical evaluation.
The final stage is called defervescence, when body temperature gradually returns to normal through sweating and reduced chills as the fever subsides.
A temperature of 102°F (38.9°C) is a significant fever and may occur with infections. Its seriousness depends on age, associated symptoms, and overall health.
Yes. Body temperature naturally tends to rise in the evening, so fever may appear higher at night than in the morning.
The 24-hour rule generally refers to monitoring fever and symptoms over a day. However, you should not wait 24 hours if the fever is high, symptoms worsen, or warning signs develop.