Search
SectionsIndexFirst Aid
  • Blood Disorders
  • Bone, Joint, and Muscle Disorders
  • Brain, Spinal Cord, and Nerve Disorders
  • Cancer
  • Children's Health Issues
  • Digestive Disorders
  • Disorders of Nutrition
  • Drugs
  • Ear, Nose, and Throat Disorders
  • Eye Disorders
  • Fundamentals
  • Heart and Blood Vessel Disorders
  • Hormonal and Metabolic Disorders
  • Immune Disorders
  • Infections
  • Injuries and Poisoning
  • Kidney and Urinary Tract Disorders
  • Liver and Gallbladder Disorders
  • Lung and Airway Disorders
  • Men's Health Issues
  • Mental Health Disorders
  • Mouth and Dental Disorders
  • Older People's Health Issues
  • Skin Disorders
  • Special Subjects
  • Women's Health Issues
ABCDEFGHI
JKLMNOPQR
STUVWXYZ
  • Emergencies
  • Cardiac Arrest
  • Choking
  • Drowning
  • Injuries
  • Altitude Illness
  • Bee Stings
  • Bites, Animal
  • Bites, Human
  • Bites, Snake
  • Burns
  • Electrical Injuries
  • Eye, Blunt Injury to
  • Eye, Chemical Burns of
  • Fractures
  • Frostbite
  • Head Injury
  • Heatstroke
  • Hypothermia
  • Lightning Injuries
  • Shock
  • Sprains and Strains
  • Wounds
In This Topic
Women's Health Issues
Pregnancy Complicated by Disease
Fevers During Pregnancy
Back to Top
Resources
  • About The Merck Manual Home Health Handbook Online Version
  • Anatomical Drawings
  • The One-Page Merck Manual of Health
  • Multimedia
  • Pronunciations
  • Selected Links
  • Weights and Measures
  • Common Medical Tests
  • Drug Names: Generic and Trade
  • Resources for Help and Information
Manuals available online
'/professional/index.html' + bookPageLink
 
'/home/index.html'
These and other Manuals available
in print, online, and as mobile applications.

See more at MerckManuals.com
Sections in Patients & Caregivers
  • Blood Disorders
  • Bone, Joint, and Muscle Disorders
  • Brain, Spinal Cord, and Nerve Disorders
  • Cancer
  • Children's Health Issues
  • Digestive Disorders
  • Disorders of Nutrition
  • Drugs
  • Ear, Nose, and Throat Disorders
  • Eye Disorders
  • Fundamentals
  • Heart and Blood Vessel Disorders
  • Hormonal and Metabolic Disorders
  • Immune Disorders
  • Infections
  • Injuries and Poisoning
  • Kidney and Urinary Tract Disorders
  • Liver and Gallbladder Disorders
  • Lung and Airway Disorders
  • Men's Health Issues
  • Mental Health Disorders
  • Mouth and Dental Disorders
  • Older People's Health Issues
  • Skin Disorders
  • Special Subjects
  • Women's Health Issues
Chapters in Women's Health Issues
  • Biology of the Female Reproductive System
  • Symptoms of Gynecologic Disorders
  • Diagnosis of Gynecologic Disorders
  • Menopause
  • Menstrual Disorders and Abnormal Vaginal Bleeding
  • Endometriosis
  • Fibroids
  • Vaginal Infections and Pelvic Inflammatory Disease
  • Pelvic Floor Disorders
  • Sexual Dysfunction in Women
  • Breast Disorders
  • Cancers of the Female Reproductive System
  • Violence Against Women
  • Infertility
  • Family Planning
  • Genetic Disorders Detection
  • Normal Pregnancy
  • Symptoms During Pregnancy
  • High-Risk Pregnancy
  • Drug Use During Pregnancy
  • Normal Labor and Delivery
  • Complications of Labor and Delivery
  • Postdelivery Period
  • Noncancerous Gynecologic Abnormalities
  • Pregnancy Complicated by Disease
  • Complications of Pregnancy
Topics in Pregnancy Complicated by Disease
  • Overview of Disease During Pregnancy
  • Anemia During Pregnancy
  • Asthma During Pregnancy
  • Autoimmune Disorders During Pregnancy
  • Cancer During Pregnancy
  • Diabetes During Pregnancy
  • Fevers During Pregnancy
  • Fibroids During Pregnancy
  • Heart Disorders During Pregnancy
  • High Blood Pressure During Pregnancy
  • Infections During Pregnancy
  • Kidney Disorders During Pregnancy
  • Liver and Gallbladder Disorders During Pregnancy
  • Seizure Disorders During Pregnancy
  • Disorders That Require Surgery During Pregnancy
  • Thromboembolic Disorders During Pregnancy
  • Thyroid Disorders During Pregnancy
  • Urinary Tract Infections During Pregnancy
 
  • Merck Manual
  • >
  • Patients & Caregivers
  • >
  • Women's Health Issues
  • >
  • Pregnancy Complicated by Disease
    • 4
 
Fevers During Pregnancy

Share This

A temperature higher than 103° F (39.5° C) during the 1st trimester increases the risk of a miscarriage and defects of the brain or spinal cord in the baby. Fever late in pregnancy increases the risk of preterm labor.

Last full review/revision December 2008 by Sean C. Blackwell, MD

Buy the Book

Mobile Versions

Back to Top

Previous: Diabetes During Pregnancy

Next: Fibroids During Pregnancy

Audio
Figures
Photographs
Pronunciations
Sidebar
Tables
Videos

Copyright     © 2010-2013 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Whitehouse Station, N.J., U.S.A.    Privacy    Terms of Use