Fever with rash in pregnant women

Fever with rash in pregnant women: A situation that requires immediate attention

The combination of fever and rash during pregnancy is always a “red flag” that requires immediate consultation with an infectious disease specialist and a gynecologist. Although the cause may be relatively benign, such a combination of symptoms can indicate an acute infection that is dangerous for fetal development. Self‑diagnosis and waiting in this situation are unacceptable.

Potentially dangerous infections (TORCH infections and others)

The greatest threat to the fetus comes from infections that a woman contracts for the first time during pregnancy. The virus can cross the placenta and cause severe congenital defects in the child. Diseases that are accompanied by fever and rash include:

• Rubella: Especially dangerous in the first trimester, it can lead to severe heart, eye, and hearing defects in the child (congenital rubella syndrome).
• Chickenpox: Can cause a congenital varicella syndrome in the fetus or severe pneumonia in the pregnant woman herself.
• Parvovirus infection (fifth disease): Can lead to severe anemia and hydrops fetalis.
• Cytomegalovirus infection (CMV): Primary infection can cause developmental delay, hearing and vision problems in the child.
• Syphilis: Increases the risk of preterm labor and complications.

What to do?

When fever and rash appear, it is necessary to immediately isolate from other pregnant women and children and contact a doctor. The doctor will perform an examination and order specific blood tests (for IgM and IgG antibodies) to confirm or rule out the diagnosis. Vaccination before pregnancy (e.g., against measles and rubella) plays a crucial role as the most reliable protection. Every expectant mother should be aware of the complications and risks.