Although it feels hot, I believe you were concerned that you might catch a cold. A condition called low grade fever is one that has a fever slightly higher than the normal for a period of time.

There are many possible causes, including colds, changes of physical condition, or the effects of daily living. We will discuss the possible causes, countermeasures, and preventive measures to reduce low-grade fever.

What is low-grade fever?

1 Definition of low-grade fever and symptoms

A body temperature of 37.0 to 37.9 degrees C is considered low-grade fever. This is a higher level than normal fever.

There are differences in normal fever. Children may have a higher temperature than adults. Those with low body temperatures may be within the 36 degree C range.

It all depends on your age, as well as the time of day. For example, a higher fever in the afternoon can indicate that you are getting older. When you get a cold, low-grade fever can be a common symptom.

Colds can be caused by viruses. Generally, colds will heal themselves in 7-10 days.

A hidden illness could be the reason you’ve been experiencing a low-grade fever for several days.

* There are many possible causes. We will only mention a few. You can seek treatment and testing at a hospital if you’re concerned.

Low-grade fever could be a common symptom of daily life

1 Perturbation of autonomic nerves

Autonomic nerves are responsible for automatically adapting to changing conditions, such as moving the heart and eating, or sweating. The autonomic nervous system regulates body temperature.

If a person complains about a particular symptom, but the test is unable to identify the cause of the problem, the diagnosis of the disease autonomic imbalance.

An autonomic imbalance in the mind and body is caused by stress. This could be due to problems in relationships with people, work disorders, conflict at home, or other factors.

The environment changes, irregular life, and other factors can cause the balance of the autonomic nervous system to be disturbed.

You may feel frustrated, anxious, or malaise. One of these symptoms is low-grade fever.

Drug fever (also known as drug fever) can be caused by any drug. However, antibiotics and anticonvulsants should not be used.

Fever can also occur when the body is exposed to drugs that regulate temperature, or anticancer drugs for diseases like cancer.

3 Low grade fever caused by changes in female hormones

[Effects on menstrual cycle (high-temperature period)]

Women who have menstruated experience an increase in their basal body temperatures due to progesterone ( luteinizing hormone).

Basal body temperature is the temperature at rest. It is measured immediately after awakening in the morning and before moving about the body.

If the menstrual cycle lasts 28 days, the basal temperature is usually low from the beginning of menstruation until ovulation (low-temperature period). The basal temperature is also high for 14 days from the day after ovulation, which is longer than the low temperature period.

It will rise by 0.3 to 0.5%. The next period will begin with the basal body temperature returning to the low temperature period.

Moreover, female hormone secretion can change during puberty or menopause. Low-grade fever, insomnia, fatigue, and other symptoms may be signs of a disturbed balance in the autonomic nervous system.

[Menopause]

Menopause is the period between menopause and 10 years after it.

Female hormone secretion drops and ovarian function suffers. It can also cause slight fever, burning, or swelling when transmitted to the brain as an impulse. You may feel a pounding in your chest.

Changes in the family environment, such as independence for children, nursing care of parents and retirement age of spouses, anxiety about your health and old age, psychologically trapped feelings, and vulnerability to these changes can occur during menopause. ..

These social and psychological stresses can affect hormones and cause imbalances in the autonomic nervous system. This could lead to menopause.

[Pregnancy]

It is possible to be pregnant if the high temperature period of basal temperature lasts for more than 3 weeks.

The next period does not begin, so the high-temperature period continues. After the second trimester (5-7 months), the body temperature begins to drop.

Low grade fever is a major cause of death in the United States.

1 cold

90% of all colds are caused by viruses, which can cause acute inflammation of the throat and nose. You may experience symptoms like a runny nose and sore throat, as well as sneezing, sneezing or sore throat, fever, headaches, sore throat, sputum, dry cough, general dullness, nausea, and frequent sneezing.

Infections caused by the new coronavirus may also have relatively mild cold-like symptoms such as fever and cough, but strong symptoms such as Mycobacterium tuberculosis. For more than two weeks, symptoms such as coughing and tan, small amounts of blood that can’t be seen with the naked eyes, and low-grade fever will continue.

While the spread of Mycobacterium tuberculosis can be caused by coughing it is rare for tuberculosis to develop. In fact, unlike other infectious diseases, about 90% of people don’t get tuberculosis.

When the immune system fails to function properly, such as when there is diabetes or kidney disease, or when the immune systems is weakened by aging, illness can begin.

Recent outbreaks in young people have been frequent. They are often caused by new infections with tubercle Bacilli, and they can become ill right away.

A weakened immune system can also lead to the development of the disease in elderly patients.

Appendicitis (appendicitis)

It causes inflammation of the appendix at the tip of your appendix, . Also known as appendicitis.

Sudden abdominal pain can occur, along with a fever between 37 and 38 degrees C, nausea, and vomiting. The epigastrium is often the first place that feels pain. It gradually shifts to lower right abdomen.

4Chronic Upper Respiratory Tract Inflammation (chronic sinusitis or chronic tonsillar inflammation, chronic sinusitis)

Chronic Sinusitisis an infection of the sinus cavities. This causes inflammation and chronic pain.

Emphyema is also known as a sticky nose, headache, low grade fever and poor concentration.


Chronic tonsillitis can become chronic over time with repeated tonsillitis. Symptoms include throat discomfort, foreign body sensations when swallowing the brim, and physical malaise.

5Chronic Pyelonephritis

This is a condition that occurs when bacteria infects the kidney and the renal pelvis. It is not characterized by subjective symptoms and can become chronic if it isn’t treated.

A severe case may present with a fever and chills. However, chronic cases can develop into a mild fever that causes turbidity in urine, hematuria, and pain at the waist. As the condition progresses, kidney function slowly declines and may lead to kidney failure.

The main cause of pyelonephritis refers to the infiltration of intestinal bacteria such as Escherichiacoli into the kidneys.

Women have a shorter urinary tract than men and are more vulnerable to bacterial infection. Because the anus is located closer to the urethra it is more common in women.

How to treat low-grade fever

1Self care at home

You can still live normally if you don’t have illness.

You can exercise, travel, enjoy your hobbies, take care of your body, and get a good night’s rest if your autonomic nervous systems is out of balance.

[Cool your forehead ]

Add to your head and forehead. Cool the areas that the pulse touches (e.g. the armpits and neck), with an ice pillow. This will help relieve low-grade fever pain.

The discomfort of burning can be relieved by wiping your entire body with a towel that has been soaked in warm water.

[Use over-the-counter medication]

You should consult a doctor if you have low-grade fever. However, general low-grade symptoms can be treated with over-the counter medication.

Acetaminophen or ibuprofen can be effective in antipyretic analgesics.

[Seek out a doctor in a hospital or medical facility]

Low-grade fevers lasting more than 10 days may indicate a serious illness, such as cancer. It is best to consult a doctor immediately.

If you visit a hospital or medical facility, you should be prepared to describe your symptoms, including low-grade fever, as well as when you had it.