Q. What are the negative effects of Pityriasis rosea in pregnancy?

Answered by
Dr. Rakesh Kumar Bahunuthula
and medically reviewed by iCliniq medical review team.
Published on May 24, 2018 and last reviewed on: Jul 13, 2019

Hi doctor,

I am a GP. I have seen my GP and he thinks I have Pityriasis rosea. I am 30 weeks pregnant and have had Pityriasis rosea as a child. My rash is currently scaly and in lines over my abdomen. My concern is about the adverse effects of this condition in pregnancy. It is hard to ascertain if this is applicable at later gestation or just in early pregnancy.

Dr. Rakesh Kumar Bahunuthula

Cosmetology Dermatology HIV/AIDS Specialist Venereology


Welcome to icliniq.com.

  • It is one of the proposed theories that Pityriasis rosea could be an exanthema secondary to HHV 6 and 7 (human herpes virus) virus infection.
  • Most of the data available regarding PR in pregnancy is about the first trimester of pregnancy wherein HHV 6 and7 infections are known to increase the rates of miscarriages as they mimic CMV infection (cytomegalovirus).
  • However, the fetal organ production ends by the 18th week and any infection beyond this period does not lead to any serious effect on it.
  • HHV infections beyond this time may affect the birth weight of the baby to some extent, but would not result in any significant complications.
  • Moreover, the proposed rates of transmission to the fetus from the mother are very very low, putting you at almost negligible risk. You can rest your fears.

For further information consult a dermatologist online --> https://www.icliniq.com/ask-a-doctor-online/dermatologist

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