Hyperemesis gravidarum is not technically life-threatening, but it can cause some severe problems for both mother and baby. A loss of nearly five percent of one's body weight can put stress on the body. The kidneys may be affected, producing less urine than necessary. The near-constant vomiting depletes the body of electrolytes and minerals such as sodium and potassium, causing weakness, dizziness, and blood pressure changes. Weakness in muscles may also lead to the need for bed rest for at least part of the pregnancy.

Sladic / Getty Images
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.