Obesity with developmental delay in infancy: a rare cause not to miss—pseudohypoparathyroidism

Mild developmental delay in infants with obesity is often disregarded, attributing it to increased weight by parents and practitioners. We report an infant with obesity and gross motor delay after the first 6 months of age, seizures and obstructive sleep apnoea. The child was diagnosed with pseudohypoparathyroidism (PHP) and was medically managed with parenteral calcium, vitamin D and magnesium. Appropriate early interventions by developmental therapists addressing the developmental domains coordinated by developmental paediatricians and relevant drug and diet management corrected the delay. The child is followed up for soft tissue calcifications, kidney functions and skeletal health. This case highlights the importance of early recognition and comprehensive management of correctable conditions like PHP by developmental specialists rather than addressing only the developmental aspect of it.