Hickey-Like Mark or Suction Bruise on Baby's Skin
The short answer
A hickey-like or suction bruise on a baby's skin is surprisingly common and is usually self-inflicted. Babies and toddlers frequently suck on their own arms, hands, and wrists, creating round, reddish-purple marks that look like a hickey. These are harmless and fade within a few days to a week. Other causes of similar-looking marks include a hemangioma (birthmark), a bruise from a fall, or rarely a skin condition. If the mark appeared suddenly without a clear explanation and is in an unusual location, consult your pediatrician.
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By Age
What to expect by age
0-12 months
Babies frequently suck on their arms, wrists, and hands for self-soothing, which can create red or purple suction marks. These marks are completely harmless. You can also see suction blisters on newborns' hands or wrists from sucking in the womb. Mongolian spots (flat, blue-gray birthmarks) can sometimes be mistaken for bruise marks. If you notice an unexplained bruise-like mark on a non-mobile baby that is not in a typical self-sucking location, discuss it with your pediatrician.
1-3 years
Toddlers may suck on their arms or hands when self-soothing, teething, or stressed, leaving temporary suction marks. These are not harmful. Toddlers also bruise easily from normal play, and round bruises can result from bumping into furniture edges or toys. If your toddler has marks you cannot explain, in unusual locations, or if you have concerns about how they were caused, speak with your pediatrician. Petechiae (tiny pinpoint red dots) can sometimes look like marks and should be evaluated promptly.
What Should You Do?
When to take action
- A round mark on the arm or wrist from self-sucking
- Suction blisters on a newborn's hands from sucking in the womb
- A mark that fades over a few days
- A bruise in a typical fall location (shins, forehead) on a mobile toddler
- The mark is in an unusual location and you are not sure of the cause
- Marks are appearing frequently and your child does not seem to be sucking on the area
- The mark is not fading after a week
- You want reassurance about the cause of any mark on your baby
- Unexplained bruise-like marks on a non-mobile baby
- Marks accompanied by petechiae (tiny red dots that don't blanch when pressed)
- Multiple unexplained marks in different stages of healing
- Any mark you are concerned about - trust your instincts and ask your pediatrician
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Skin Concerns
Baby Has a Bruise That Won't Go Away
Most bruises in toddlers are completely normal and result from the bumps and tumbles of learning to walk and play. A typical bruise goes through a color cycle (red to blue/purple to green/yellow) and resolves within 2-3 weeks. Bruises on the shins, knees, and forehead are very common in active toddlers. However, bruises in unusual locations (torso, back, ears, neck), bruises in pre-mobile babies, or easy/excessive bruising may need medical evaluation to rule out bleeding disorders or other concerns.
Baby Birthmarks
Birthmarks are extremely common -- more than 80% of babies have at least one. Most birthmarks are completely harmless and many fade or disappear on their own over time. The type, location, and any changes over time help your pediatrician determine whether any follow-up is needed.
Petechiae (Tiny Red Dots) on My Baby
Petechiae are tiny red, purple, or brown dots caused by broken blood vessels just under the skin. While they can appear after vigorous crying, coughing, or vomiting in healthy babies, they can also signal serious conditions. Always contact your pediatrician if you notice petechiae, especially if they appear suddenly or are widespread.
My Baby Has Blue-Gray Spots on Their Skin
Mongolian spots are flat, blue-gray birthmarks that commonly appear on the lower back, buttocks, or shoulders of babies with darker skin tones. They are completely harmless, caused by pigment cells deep in the skin, and usually fade by school age. They are not bruises and do not require any treatment.
Baby Acne vs Eczema: How to Tell the Difference
Baby acne and eczema can both cause facial rashes, but they look and feel different. Baby acne appears as small red or white bumps, similar to teenage acne, usually on the cheeks, nose, and forehead. Eczema causes dry, rough, red, itchy patches. Baby acne resolves on its own by 3 to 4 months, while eczema may need ongoing management.
Baby Acne (Neonatal Acne)
Baby acne is a very common, harmless condition that appears as small red or white bumps on your newborn's face, usually around 2-4 weeks of age. It is caused by maternal hormones still circulating in your baby's system and clears up on its own within a few weeks to months without any treatment.