Ehlers-Danlos Syndrome in Babies
The short answer
Ehlers-Danlos syndromes (EDS) are a group of inherited connective tissue disorders characterized by joint hypermobility, skin that stretches more than normal, and tissue fragility. The most common type, hypermobile EDS, affects an estimated 1 in 5,000 people. Signs in babies are often subtle and can include very flexible joints, soft or stretchy skin, and easy bruising. Most types of EDS are manageable with appropriate care and physical therapy.
By Age
What to expect by age
EDS may be suspected at birth in severe forms if a baby has very loose joints, fragile or stretchy skin, or is born prematurely with premature rupture of membranes. The vascular type (vEDS), the most serious form, may present with translucent skin and visible veins. Kyphoscoliotic EDS may present with severe hypotonia and scoliosis at birth. Many milder forms are not apparent this early. Family history of EDS is an important diagnostic clue.
Babies with EDS may have noticeably loose or "floppy" joints, skin that feels unusually soft and stretchy, and may bruise more easily than expected. Motor development may be slightly delayed due to joint laxity and low muscle tone. Some babies have difficulty with feeding if oral tissues are affected. If you notice these features, especially with a family history, mention them to your pediatrician.
As babies become more active, joint hypermobility may become more apparent — joints may bend beyond the normal range. Sitting and crawling may be delayed. Skin may show easy bruising or slow wound healing. Subluxations (partial dislocations) can occasionally occur with normal handling. Physical therapy focused on strengthening muscles around hypermobile joints is the primary intervention.
Toddlers with EDS may be late walkers due to joint instability and low tone, and they may fall frequently. Skin injuries may heal slowly and leave wide, thin scars (in classic EDS). Joint protection strategies become important — strengthening exercises rather than stretching. Occupational therapy can help with fine motor tasks. With appropriate support, most children with EDS can participate fully in daily activities.
What Should You Do?
When to take action
- Your baby has flexible joints without pain, instability, or dislocation
- Your baby's skin is soft but does not tear easily or bruise excessively
- Your baby is meeting developmental milestones even if slightly on the later side
- You have benign joint hypermobility in the family without other connective tissue features
- Your baby has extremely flexible joints that seem to extend well beyond the normal range, combined with unusually soft or stretchy skin
- Your baby bruises very easily with minimal contact or has skin that tears or scars unusually
- Your baby or a family member has been diagnosed with EDS and you want your baby evaluated
- Your baby has sudden joint swelling or appears to be in pain after a joint seemed to pop or shift out of place
- Your baby with suspected vascular EDS (translucent skin, visible veins) develops sudden abdominal pain, swelling, or signs of internal bleeding
Sources
Related Resources
Related Medical Concerns
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.
Adenoid Hypertrophy and Breathing
Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.
Air Quality and Baby Health
Babies and young children are more vulnerable to air pollution than adults because they breathe faster, their lungs are still developing, and they spend more time close to the ground where some pollutants concentrate. The EPA recommends keeping babies indoors when the Air Quality Index (AQI) exceeds 100 (orange level). During wildfire smoke events, keep windows closed, use air purifiers with HEPA filters, and monitor your child for coughing, wheezing, or difficulty breathing. Long-term exposure to air pollution can affect lung development.
Altitude Sickness in Babies
Babies and toddlers can experience altitude sickness when traveling above 5,000-8,000 feet (1,500-2,500 meters). Symptoms are harder to recognize in infants because they cannot describe how they feel. Watch for unusual fussiness, poor feeding, disrupted sleep, vomiting, and fast breathing. Gradual ascent is the best prevention. Most pediatricians recommend avoiding sleeping at very high altitudes (above 8,000 feet) with infants when possible, and descending immediately if symptoms appear.
Amblyopia (Lazy Eye) Treatment Timing
Amblyopia (lazy eye) is the most common cause of vision loss in children, affecting 2-3% of the population. It occurs when one eye develops weaker vision because the brain favors the other eye. Early detection and treatment are critical because the visual system is most responsive to treatment during early childhood. Treatment is most effective when started before age 7, though improvement is possible at older ages. Treatment options include patching the stronger eye, atropine eye drops, glasses, or a combination.