Skip to content

Understanding Why Your Baby Is Spitting Up Blood: Essential Guidance

Seeing your baby spit up blood can be alarming, but don’t panic. There are numerous ordinary reasons your baby might be spitting up small quantities of blood. This article explains these potential causes and gives some advice on when it might be time to seek medical help.

Baby Spitting Up Blood After Breastfeeding

Blood after breastfeeding is often due to cracked or sore nipples. The baby ingests the blood during nursing, which then reappears when they spit up. If your nipples are sore or cracked, using nipple lotion or a shield can help.

Why Would a Baby Spit Up Blood?

There are several reasons a baby might spit up blood. These include swallowing blood during childbirth, breastfeeding from cracked or bleeding nipples, forceful spitting up causing small tears in the esophagus, vitamin K deficiency, and conditions such as acid reflux or esophagitis.

What Does Blood in Spit Up Mean?

Blood in spit up could indicate that your baby has ingested blood from you during breastfeeding, or they may have a small tear in their esophagus. It can also be a sign of a milk protein allergy, particularly if the blood appears after they’ve had cow’s milk for the first time.

When Should I Be Concerned About Baby Spit Up?

Although blood in baby spit up is typically not a cause for alarm, you should contact your pediatrician if your baby exhibits additional symptoms like green or yellow vomit/bile, high fever, diarrhea (particularly if it’s dark or bloody), a new or worsening rash, inconsolable crying, or seizures.

Is Spitting Up Blood an Emergency?

In most cases, spitting up blood isn’t an emergency. However, if the baby has additional symptoms such as high fever, diarrhea, a rash, or if they seem excessively upset or have a seizure, immediate medical attention is required.

Why Does My Baby Spit Up Turns Clothes Pink?

The pink color in your baby’s spit-up is likely due to the presence of a small amount of blood. Blood can change color when mixed with stomach acid, sometimes resulting in a pink or red hue.

What Stomach Conditions Cause Blood in Spit?

Stomach conditions such as GERD (Gastroesophageal reflux disease) or esophagitis can lead to blood in spit-up. These conditions can cause irritation and inflammation in the throat and esophagus, which can result in the presence of blood.

How Do You Treat Blood in Spit?

Treatment for blood in spit will depend on the cause. If it’s due to cracked or sore nipples from breastfeeding, using nipple lotion or a nipple shield can help. If it’s due to a condition like GERD or esophagitis, your pediatrician may recommend specific treatments or medications.

Is a Little Blood in Vomit Normal?

While it can be concerning to see, a small amount of blood in vomit or spit-up is typically normal, especially if it’s after breastfeeding or a forceful spit-up. However, if it persists or is accompanied by other worrying symptoms, seek medical attention.

Why Your Newborn Might Spit Up Blood

One possibility is that newborns sometimes swallow blood during childbirth. This can cause your baby to spit up blood in the first few days. Another source might be a bit of blood in your breast milk as it first comes in. Both scenarios are typical and don’t pose a risk to your baby.

Breastfeeding and Baby Spitting Up Blood

Breastfeeding sometimes leads to cracked or bleeding nipples, which could cause your baby to ingest some blood. This is a common source of blood in a baby’s spit-up. If your nipples are sore, cracked, or dry, using a nipple lotion like lanolin or a nipple shield can help them heal. Should the issue persist, please consult your doctor, as it could indicate an underlying health concern.

Forceful Spitting Up

If your baby spits up forcefully, like adults, they might spit up a little blood. A small tear in the esophagus can result in blood being visible in your baby’s spit-up. This should heal naturally within a few days.

Possible Vitamin K Deficiency

Babies usually receive a vitamin K shot shortly after birth to help with blood clotting. If your baby did not receive this shot, a deficiency could lead to blood appearing in their spit-up.

Acid Reflux and Esophagitis

Gastroesophageal reflux disease (GERD) can irritate the throat and esophagus, sometimes leading to traces of blood. If your baby shows signs of GERD, consult your pediatrician for advice. Esophagitis, an inflammation of the esophagus, could also cause blood in the spit-up.

Recent Medical Treatments

A recent medical procedure around your baby’s nose or mouth might lead to temporary traces of blood in the spit-up. Contact your pediatrician if you have any concerns.

Potential Milk Protein Allergy

Although rare, a milk protein allergy can cause your baby to spit up blood. If your baby recently had cow’s milk for the first time, this could be a sign of such an allergy. In this case, immediately consult a pediatrician.

When to Consult a Doctor

If your baby shows any of the following symptoms along with blood in their spit-up, contact your pediatrician:

  • Green or yellow vomit/bile
  • Temperature above 101 degrees
  • Diarrhea (especially dark or bloody)
  • New or worsening rash
  • Inconsolable upset or crying
  • Seizure

In these situations, it’s recommended to take a sample of your baby’s spit-up to your doctor for testing.

The Role of in Your Baby’s Health

Understanding why your baby is spitting up blood can also be related to their sleep patterns. can help you navigate this potentially stressful time. The site offers resources and guidance about baby sleep patterns, tips for comfort, and advice on addressing baby health concerns, such as spitting up blood.


While it’s unnerving to see blood in your baby’s spit-up, remember that it’s typically due to normal reasons. When in doubt, always consult your pediatrician, especially if your baby exhibits additional worrying symptoms. Your vigilance, along with the resources from, will help ensure your baby’s health and happiness.