What is the cause of cough and low fever?

Cough and low fever are common in life, and there are many causes. It may be caused by lung infection, bronchitis or asthma. You must be vigilant when you have a low fever, monitor your body temperature in time, and go to the hospital for examination. What is the cause? It may be physiological reasons. Of course, you should be more vigilant about low fever caused by some organic diseases.

What is the cause of cough and low fever?

Low-grade fever is a common symptom, and checking the cause of a low-grade fever is a very meticulous task. Especially for functional low-grade fever, a long-term observation is necessary and a diagnosis can only be made after excluding organic diseases.

1. Functional low-grade fever:

Its clinical feature is a body temperature that is about 0.3~0.5℃ higher than normal, generally not exceeding 38℃. Common ones are:

1. Physiological low-grade fever: seen in women with low-grade fever before menstruation or during pregnancy;

2. Seasonal low-grade fever: A mild fever accompanied by fatigue and loss of appetite occurs in summer and naturally eases in autumn, which is called summer mild fever.

3. Environmental low-grade fever: About 10% of people working in a high-temperature environment develop a low-grade fever.

4. Neurofunctional low-grade fever.

Clinically, it is more common in young people aged 20-30 years old, and the patient's body temperature is 0.3℃-0.5℃ higher than normal. The duration of low-grade fever varies from several months to several years. The general condition is good and there is no weight loss. This type of patients accounts for about 1/3 of the total number of patients with long-term low-grade fever and has a good prognosis.

2. Organic low-grade fever:

There are many diseases that cause organic low-grade fever, common causes include tuberculosis, bile tract infection, chronic lesion infection, urinary tract infection, rheumatism, hepatitis, tumors, etc. Others are hyperthyroidism, anemia, connective tissue disease, post-streptococcal status, etc.