Rickets is a childhood bone disorder in which bones become soft and weak, usually due to prolonged vitamin D deficiency, though calcium or phosphate deficiency can also contribute. It most commonly affects children between 6 months and 3 years, when bone growth is rapid. ✅ Causes The main causes include: 1. Vitamin D Deficiency (most common) • Not enough sunlight exposure • Poor dietary intake (little intake of eggs, milk, fish) • Exclusive breastfeeding without vitamin D supplementation 2. Calc