Delayed closure of the anterior fontanelle

When do fontanelles close?

Typically, fontanelles close by the time your baby is 18 months old. The posterior fontanelle usually closes first — within 2 months of birth. The anterior fontanelle closes between 7 and 18 months. If you feel your baby’s fontanelles are closing too soon or haven’t closed in 18 months, consult your pediatrician.

Delayed closure of the anterior fontanelle:

Just as fontanelles can close too early, fontanelles that close late can also be a sign of medical issues. The most common causes of fontanelles closing outside the normal time range are:

• Achondroplasoa: A genetic disorder that affects cartilage and bone growth
• Hypothyroidism: An issue in the thyroid gland that affects hormone production
• Down syndrome
• Increased pressure in the brain
• Hydrocephalus
• Intrauterine growth restriction (IUGR)
• Premature birth

• Rarer causes include:

• Achondroplasia
• Alert syndrome
• Cleidocranial dysostosis
• Congenital rubella
• Neonatal hypothyroidism
• Osteogenesos imperfecta
• Rickets 

Schuesler Tissue Salts which help Delayed closure of the anterior fontanelle.

For Consultancy: microdoshomoeo

Reference: childrenscolorado.org