Low-grade fever, Family Medicine FAQ

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Understanding Persistent Low-Grade Fever: When to Seek Medical Advice

Persistent low-grade fever Hello, doctor. I would like to inquire about my body temperature. Since this past Monday, my temperature has been fluctuating around 37.5 degrees Celsius, with a maximum of 37.7 and a minimum of 37.1. Most of the time, it is between 37.4 and 37.6. I am ...


Dr. Liao Yaopan Reply:
Hello, according to the records, your temperature is indeed slightly elevated. If it does not improve, it is advisable to visit the Infectious Disease Clinic for further evaluation. Please note that online consultations are not equivalent to in-person medical visits and cannot pr...

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COVID-19 Symptoms or Autonomic Nervous System Disorder?

Is it a symptom of the confirmed diagnosis or is there an additional complication of autonomic nervous system dysfunction? Hello, doctor. I would like to explain that I am experiencing a second diagnosis of COVID-19 and I have a history of mitral valve prolapse with regurgitation...


Dr. Liao Yaopan Reply:
Hello, whether or not a diagnosis is confirmed should still be determined by viral testing. However, it is difficult to confirm the presence of the aforementioned discomfort symptoms based on experience and clinical research. It is advisable to seek appropriate treatment or manag...

[Read More] COVID-19 Symptoms or Autonomic Nervous System Disorder?


Persistent Low-Grade Fever: Possible Causes and Next Steps for Evaluation

Persistent elevated body temperature? Hello, doctor. Last August, I had a fever reaching 38 degrees Celsius (ear temperature), which dropped to 37.7 degrees on the same day. However, I have been experiencing a persistent low-grade fever ranging from 37 to 37.5 degrees until March...


Dr. Chen Bozhang Reply:
Dear Ms. Tsai, I understand from your letter that you have been experiencing persistent low-grade fever since August of last year, and various examinations have not revealed a cause. Generally, the potential causes of continuous fever may include infections, rheumatologic and au...

[Read More] Persistent Low-Grade Fever: Possible Causes and Next Steps for Evaluation


Persistent Low-Grade Fever After Kidney Infection: What to Know

The body temperature has been consistently around 37 degrees Celsius for several days? Hello, doctor. I was hospitalized for pyelonephritis two weeks ago and stayed for a week, followed by another week of antibiotics after discharge. My menstrual period started right after and la...


Dr. Xiao Yongxun Reply:
Dear Ms. Chen: 1. The diagnosis of acute pyelonephritis primarily presents with symptoms such as frequent urination, dysuria, flank pain, and may even include fever, chills, and headache. Laboratory tests typically show an increase in white blood cells with a rise in the proport...

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Persistent Low-Grade Fever: When to Seek Medical Advice?

Persistent low-grade fever that won't subside? I have been experiencing a low-grade fever for a week now. My temperature in the morning before work is 37.2°C, but it rises to 37.7°C after I start working, with a maximum recorded temperature of 37.9°C. In the evening, it drop...


Dr. Lin Zhebin Reply:
Hello: If you have a persistent low-grade fever for a week, it is advisable to seek medical evaluation to determine the cause. Based on the symptoms you described, it is more likely to be an infection (such as viral or bacterial). Psychogenic issues are generally considered only ...

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Persistent Low-Grade Fever After COVID-19: Is It a Long-Term Effect?

Since being re-diagnosed at the end of January this year, my body temperature has remained elevated? Hello, I was diagnosed with COVID-19 for the second time at the end of January this year, and I tested negative three days later. However, my body temperature has been slightly el...


Dr. Hou Angting Reply:
Hello Mr. Chang: It is normal for body temperature to fluctuate after general activities. If your temperature is within the normal range in the morning and you do not have any discomfort, the likelihood of post-COVID syndrome is lower. I suggest you relax and develop a habit of e...

[Read More] Persistent Low-Grade Fever After COVID-19: Is It a Long-Term Effect?


Persistent Low-Grade Fever After Viral Infection: What to Know

Since a certain day when I caught a chill, I have been experiencing a persistent low-grade fever? Since last Tuesday, there has been continuous wind, and starting from Wednesday, I experienced mild throat pain along with a body temperature ranging between 37°C and 37.8°C. The nex...


Dr. Liao Yaopan Reply:
Hello, there are many possible reasons for an elevated body temperature, with the most common being infections. Other potential causes include inflammatory diseases or tumors. If the high temperature persists, it is advisable to have an evaluation by an infectious disease special...

[Read More] Persistent Low-Grade Fever After Viral Infection: What to Know


Understanding Persistent Low-Grade Fever in Patients with Chronic Conditions

Elevated body temperature? A little over a week ago, I had a fever of 38 degrees Celsius at midnight, and I was awakened from sleep by pain in my hand joints. In the morning, my temperature remained at 38 degrees, and I had no appetite. At the hospital, my tests showed SEG neutro...


Dr. Lin Zhebin Reply:
Hello: Regarding your symptoms of fever and discomfort, it is essential to first consider the possibility of an infection. Currently, the prevalence of COVID-19 is high. If your rapid test result is negative but you continue to feel unwell, it is advisable to visit a hospital for...

[Read More] Understanding Persistent Low-Grade Fever in Patients with Chronic Conditions


Understanding Persistent Low-Grade Fever After COVID-19 Recovery

Low-grade fever I tested positive for COVID-19 on July 9 and completed my isolation on July 16. However, I still have positive results on rapid tests, and my body temperature has consistently been elevated (ranging from 37 to 37.6°C), occasionally reaching 37.9°C. I consulted a d...


Dr. Li Zhenggang Reply:
We recommend that you discuss the above situation further with your telemedicine attending physician to determine if any additional treatment is necessary. Thank you, and wishing you good health!

[Read More] Understanding Persistent Low-Grade Fever After COVID-19 Recovery


Managing COVID-19 Risks for Diabetic Patients: A Care Guide

Diabetes and confirmed COVID-19 infection? Hello Doctor, my mother is 64 years old and has diabetes and hypertension. She has been regularly visiting a family physician and is on long-term medication for control. However, in September 2020, she experienced pancreatitis (suspected...


Dr. Lin Zhebin Reply:
Hello: After contracting COVID-19, the two main concerns are monitoring the progression of the illness and medication treatment: 1. Monitoring the progression of the illness: This can be divided into subjective and objective components. Subjective component: If your mother experi...

[Read More] Managing COVID-19 Risks for Diabetic Patients: A Care Guide


Understanding Low-Grade Fever: Causes and Concerns in Family Medicine

Temperature issues Hello Doctor: My condition started on the 7th of this month, when I felt a sensation of body heat for about four days (I didn't take my temperature, as I have experienced this occasionally before, and it has never been a real fever; just a warm neck, along...


Dr. Xiao Yongxun Reply:
Dear Ms. Amy: 1. Humans possess physiological mechanisms to regulate and maintain core body temperature. When there is a need to release excess heat, the body cools down by increasing blood circulation to the skin and sweating. Conversely, to conserve internal heat, the body red...

[Read More] Understanding Low-Grade Fever: Causes and Concerns in Family Medicine


Understanding Persistent Low-Grade Fever: Causes and When to Seek Help

Low-grade fever issue Hello Doctor, I remember that about five or six years ago, I experienced episodes for a few months where I would feel warm and have headaches (my temperature was always between 36-37.5°C without fever). Since then, I have had similar experiences every year. ...


Dr. Liao Yaopan Reply:
Hello, with unexplained fever and elevated body temperature, the primary concern should be to rule out any potential infectious issues. If such concerns are excluded, differential diagnosis for autoimmune rheumatic diseases and even neoplastic conditions should be considered. Ple...

[Read More] Understanding Persistent Low-Grade Fever: Causes and When to Seek Help


COVID-19 Vaccination Concerns for Patients with Thalassemia

COVID-19 vaccine Doctor, I have mild thalassemia. After receiving the first dose of the AZ vaccine at the end of last year, I have had a persistent low-grade fever ranging from 37 to 38 degrees Celsius for almost three weeks. I also have some rashes on my body, which I believe I ...


Dr. Ye Qianyu Reply:
Hello! It is recommended that you go directly to a medical facility for a physician to examine you. If the delayed skin reaction is not too severe, you may still receive the vaccine. However, mixing vaccines may have stronger side effects and may not be suitable for everyone.

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Understanding Elevated Ear Temperature: Is It a Sign of Fever?

Elevated ear temperature? Hello, doctor. Recently, I have been measuring my ear temperature, which consistently falls within the range of 37.7 to 38.2 degrees Celsius (this result has been consistent across different ear thermometers) and has persisted for several days. I have me...


Dr. Ye Qianyu Reply:
Hello, body temperature is one of the symptoms of an immune response. The range you measured indicates a low-grade fever. Generally, infections may cause fever for 3-5 days. Please continue to monitor your symptoms, and if you experience any discomfort or persistent fever, please...

[Read More] Understanding Elevated Ear Temperature: Is It a Sign of Fever?


Night Sweats and Weight Loss: Understanding Your Symptoms and Next Steps

Night sweats and persistent weight loss? Hello Doctor, in early October, I visited the gastroenterology department due to issues with bowel sounds, bloating, and diarrhea. The physician diagnosed me with functional dyspepsia. Later, feeling uneasy, I went to another hospital for ...


Dr. Ye Qianyu Reply:
Hello! Based on your description, I recommend that you consult a pulmonologist.

[Read More] Night Sweats and Weight Loss: Understanding Your Symptoms and Next Steps


Fever and Headache After Vaccination: When to Seek Medical Help?

Fever and headache after receiving the varicella vaccine, MMR vaccine, influenza vaccine, and adult Tdap vaccine? Hello: About 15 days ago, I received the varicella vaccine, MMR vaccine, influenza vaccine, and adult Tdap vaccine. Two days ago, I started experiencing fever and hea...


Dr. Ye Qianyu Reply:
Hello! After vaccination, the timing of fever for the varicella vaccine and the measles, mumps, and rubella (MMR) vaccine typically occurs about 5 to 12 days post-vaccination, while for other vaccines, it usually occurs around 8 to 12 hours after administration. Vaccine-related f...

[Read More] Fever and Headache After Vaccination: When to Seek Medical Help?


Understanding Persistent Low-Grade Fever: Causes and Next Steps

Recently, there has been an elevated body temperature for the past month? Hello Doctor: I discovered that I had recurrent low-grade fevers at the end of October, and subsequently visited a large hospital for evaluation. Blood and urine tests revealed a urinary tract infection. I ...


Dr. Ye Qianyu Reply:
Hello! Body temperature can also be influenced by the environment, clothing, and diet. Some viral infections may not show changes in blood tests. Please avoid spicy or warming foods and supplements that may increase body temperature or promote blood circulation. Additionally, be ...

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Understanding Low-Grade Fever with Gastroenteritis: Causes and Concerns

I would like to know if gastroenteritis can cause a persistent low-grade fever? Hello, my issue is a bit complex, and I would appreciate it if the doctor could take some time to listen to my story. 1. On May 7, I decided to visit an orthopedic department at a major hospital due...


Dr. Liao Yaopan Reply:
Hello, based on the above description, the issue of gastroenteritis still needs to be properly addressed. The recorded body temperature is within a reasonable range. Additionally, with the recent hot weather, adequate hydration is essential. There should be no concerns regarding ...

[Read More] Understanding Low-Grade Fever with Gastroenteritis: Causes and Concerns


Choosing the Right Specialist: Immunology, Infectious Disease, or Hematology?

Medical specialties Hello, Director. I would like to ask which department I should consult for the following situation: A few years ago, I was hospitalized for 9 days due to a high fever. Blood tests and multiple examinations were conducted, but ultimately it was concluded as an ...


Dr. Liao Yaopan Reply:
Hello, it is recommended to consult a rheumatologist for further evaluation. Of course, recurrent infection issues should be appropriately treated. Online consultations are not equivalent to in-person visits and cannot provide diagnoses or treatment recommendations. Changhua Hosp...

[Read More] Choosing the Right Specialist: Immunology, Infectious Disease, or Hematology?


Understanding Low-Grade Fever Before Menstruation: When to Seek Help

A low-grade fever before menstruation may persist for more than a week? Hello Doctor: Since around November 16, I have been feeling fatigued in the evenings and going to bed early. On November 19, I felt hot and measured an ear temperature of 37.8 degrees Celsius, while the foreh...


Dr. Wu Zongying Reply:
Hello: You have measured a temperature of 37.8 degrees Celsius with an ear thermometer, which indicates a fever, and it is advisable to seek medical treatment. Forehead temperature readings are generally less accurate. As for which department to visit, it depends on your symptoms...

[Read More] Understanding Low-Grade Fever Before Menstruation: When to Seek Help


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