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Vitamin K Deficiency Bleeding (Hemorrhagic Disease of the Newborn)

What is vitamin K deficiency bleeding?

Vitamin K deficiency bleeding (VKDB) is a bleeding problem that occurs in some newborns during the first few days of life. VKDB was previously called hemorrhagic disease of the newborn.

What causes vitamin K deficiency bleeding?

Babies are normally born with low levels of vitamin K, an essential factor in blood clotting. A deficiency in vitamin K is the main cause of VKDB.

Who is affected by vitamin K deficiency bleeding?

Vitamin K deficiency may result in bleeding in a very small percentage of babies. Babies at risk for developing vitamin K deficiency bleeding (VKDB) include the following:

  • Babies who do not receive preventive vitamin K in an injection at birth

  • Exclusively breastfed babies (breast milk contains less vitamin K than cow's milk formula)

  • Babies whose mothers take anticonvulsants (for seizures) and anticoagulants (for clotting disorders) 

Why is vitamin K deficiency bleeding a concern?

Without the clotting factor, bleeding occurs, and severe bleeding or hemorrhage can result.

What are the symptoms of vitamin K deficiency bleeding?

The following are the most common symptoms of VKDB. However, each baby may experience symptoms differently. Symptoms may include:

  • Blood in the baby's bowel movements

  • Blood in the baby's urine

  • Oozing around the umbilical cord

The symptoms of VKDB may resemble other conditions or medical problems. Always consult your baby's doctor for a diagnosis.

How is vitamin K deficiency bleeding diagnosed?

In addition to a complete medical history and physical examination, a diagnosis is based on signs of bleeding and laboratory tests for blood clotting times.

Treatment for vitamin K deficiency bleeding

Specific treatment for VKDB will be determined by your baby's doctor.

The American Academy of Pediatrics recommends giving every newborn baby an injection of vitamin K after delivery, as well as supplementing feedings with infant formulas that contain vitamin K, to prevent this potentially life-threatening disease.

Blood transfusions may also be needed if bleeding is severe.

Reviewed Date: 06-28-2013

Sangrado de Deficiencia de Vitamina K (Enfermedad Hemorrágica del Recién Nacido)

Disclaimer: This information is not intended to substitute or replace the professional medical advice you receive from your child's physician. The content provided on this page is for informational purposes only, and was not designed to diagnose or treat a health problem or disease. Please consult your child's physician with any questions or concerns you may have regarding a medical condition.