Table 2.

Causes of calcipenic rickets.

Calcipenic Rickets	Causes
Nutritional rickets	Calcium deficiency
	Vitamin D deficiency
Congenital defects of action of Vitamin D	Vitamin D dependent rickets type 1A Vitamin D dependent rickets type 1B Vitamin D dependent rickets type 2A Vitamin D dependent rickets type 2B Vitamin D dependent rickets type 3
Acquired vitamin D deficiency	Hepatic insufficiency
	Renal insufficiency
	Malabsorption
	Drugs
	Hyperparathyroidism