Shreya Kapoor Shreya Kapoor Asked 5 months ago

What fever temp is dangerous for adults?

My husband has a high fever, and I'm a bit worried as it's not coming down easily. What fever temperature is considered dangerous for adults, and at what point should we seek urgent medical attention?

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10 answers

Gopalakrishnan Rao Gopalakrishnan Rao Joined Jun 2026 4 months ago
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For adults, a fever persistently above 103°F (39.4°C) is dangerous, and anything 105°F (40.6°C) or higher is a medical emergency that requires immediate attention. With high BP, any fever needs closer monitoring, so don't hesitate to consult a doctor.

Priya Singh Priya Singh Joined Jan 2026 5 months ago

A fever above 103°F (39.4°C) for adults is concerning, and 105°F (40.6°C) or higher is dangerous.

Ramesh Gupta Ramesh Gupta Joined May 2026 5 months ago

Generally, for adults, if your fever is consistently over 103°F (39.4°C) and not responding to regular meds, it's a red flag. Anything above 105°F (40.6°C) is very dangerous and needs hospital. Don't worry about test costs, your health is more important.

Vivek Mehta Vivek Mehta Joined Feb 2026 5 months ago

My doctor at Apollo told me that for adults, a fever that is persistently above 103°F (39.4°C) is high and should be checked. If it reaches 105°F (40.6°C) or more, it's a medical emergency. Don't try to manage that at home, go to a good hospital directly.

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Rajesh Kumar Rajesh Kumar Joined Jan 2026 5 months ago

With diabetes, we have to be extra careful. For adults, a fever above 103°F (39.4°C) is certainly dangerous, and 105°F (40.6°C) or higher is a medical emergency. High fever can impact blood sugar control. So, always consult a doctor immediately and monitor your sugars closely.

Vikram Singh Vikram Singh Joined Feb 2026 5 months ago

Even for fit adults, a fever exceeding 103°F (39.4°C) warrants medical attention. Above 105°F (40.6°C), it's critically dangerous. While a healthy lifestyle helps build immunity, during a high fever, rest is paramount, and strenuous activity like exercise is definitely not allowed until fully recovered and doctor gives OK.

Anisha Sharma Anisha Sharma Joined Apr 2026 5 months ago

For adults, a fever consistently above 103°F (39.4°C) is concerning, especially if it's accompanied by other severe symptoms. A temperature of 105°F (40.6°C) or higher is considered a medical emergency. Time is of the essence, so seek medical attention promptly to avoid complications.

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Deepika Reddy Deepika Reddy Joined Jan 2026 5 months ago

After my recent illness, my doctor clearly said that for adults, anything above 103°F (39.4°C) that won't go down with meds is a sign to see them. If it hits 105°F (40.6°C), that's an emergency, and you need to get to the hospital right away. It can cause serious complications.

Meena Devi Meena Devi Joined Feb 2026 5 months ago

While we worry more about kids, adults also need to be careful. For an adult, if the fever is not coming down and stays above 103°F (39.4°C), it's serious. If it touches 105°F (40.6°C), you need to get to the hospital immediately. Don't delay.

Anil Gupta Anil Gupta Joined Feb 2026 5 months ago

For normal adults, if your fever crosses 103°F (39.4°C) and stays there even after taking medicine, then it is dangerous and you should go to the doctor. If it goes to 105°F (40.6°C), then it's an emergency, don't delay even a minute, go straight to the hospital.

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