I'm sorry I was not able to find information on our site regarding this kind of symptom. Is it possibleit is a birthmark of some kind?
All the best, sue
My guess is that it's a "sacral dimple". Akron Children's Hospital has great info on their website:
A sacral dimple or sacral pit, also known as a pilonidal dimple, is an indentation or little hole in the crease between the buttocks and the base of the tailbone. This dimple generally develops as the spinal column is forming inside the mother's womb. To put it simply, if the inner tissues of the neural tube that forms the spinal column become malformed, the outside layer of tissue including the skin may not be smooth. This could mean that the outside layer formed with some dimples in it, which have no effect on the inner layers; or there could be a malformation of the inner layers, which have no effect on the outer layers. So a dimple in the lower back along the spine may be a simple divot in the skin, causing no problems whatsoever, or it may be the sign of malformation in lower tissue layers including the spine and spinal cord.
Most sacral dimples are harmless. However, some sacral pits continue deep inside and may even connect to the spinal canal or even the colon or large intestine. In the latter case, bits of stool can leak out through the opening causing a chronic rash. This type of dimple needs to be closed. Other signs that may indicate an abnormality in the lower spine include large or deep sacral dimples or dimples that are covered by hair or a birthmark.
Most spinal cord defects signaled by a sacral dimple may be adequately investigated by doing a thorough physical exam and, if needed, an ultrasound. For those in which there is a very high suspicion of a spinal cord defect, an MRI is usually performed. If these tests detect a problem affecting the spinal cord, the child may require surgery.
If you notice a deep or an unusual-looking sacral dimple on your infant, be sure to discuss it with your pediatrician.
Some things your pediatrician will look for include:
After doing an exam, your child's doctor will discuss what, if any, treatment is needed.
Hi, My daughter had the same thing and with a dimple and all the docs said it was fine and don't worry about it. Well I worried about it and found a doctor who did a MRI and found that she had a tethered spinal cord.
She had back surgery at 9 months and is doing well today. A tethered spinal cord can lead to problems.
Have it checked out!
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