What causes fever and backache in pregnant women?

In general, fever and lower back pain in pregnant women may be caused by hormonal changes, overexertion, colds with fever, acute gastroenteritis, nephritis, or other conditions. Patients should promptly visit a正规 hospital for diagnosis and treatment according to the specific situation. Details are as follows:

1. Hormonal Changes

During pregnancy, elevated hormone levels increase metabolic activity, which can slightly raise basal body temperature, leading to a sensation of warmth—though not actual fever. Additionally, hormonal effects that cause ligament relaxation may result in mild lower back discomfort. These are considered normal physiological phenomena.

2. Overexertion

Pregnant women may feel more fatigued and physically drained during pregnancy, potentially causing lower back pain and general discomfort. Adequate rest and sufficient sleep are essential to reduce fatigue. Avoid excessive physical activity, pay attention to bodily signals, and do not push beyond physical limits.

3. Fever from Cold or Infection

If a pregnant woman catches a chill or is infected with bacteria or viruses, she may develop a cold accompanied by fever. Fever can lead to muscle aches, including lower back pain. This condition is often accompanied by symptoms such as runny nose, sneezing, and coughing. Maintain proper warmth to avoid chilling, follow a light diet, and if symptoms are severe, take medications such as ibuprofen tablets, acetaminophen tablets, or compound licorice tablets only under medical guidance.

4. Acute Gastroenteritis

Pregnant women may develop acute gastroenteritis, resulting in symptoms such as abdominal pain, lower back pain, nausea, and fever. It is important to maintain adequate fluid intake and avoid raw or undercooked foods. Under medical supervision, medications such as smectite powder, levofloxacin hydrochloride tablets, or metronidazole tablets may be used to relieve symptoms.

5. Nephritis

Nephritis is usually caused by bacterial infection and may present with symptoms including lower back pain, painful urination, and fever. Sufficient rest and nutritional support can aid recovery. In severe cases, medications such as cefixime capsules, amoxicillin capsules, or enalapril maleate tablets may be prescribed under a doctor’s direction.

Pregnant women experiencing fever and lower back pain should undergo further evaluation through color Doppler ultrasound, complete blood count, and other relevant tests. It is recommended to seek care at a正规 hospital and follow the guidance of qualified medical professionals.