Early Symptoms of Rickets:

Rickets is a chronic nutritional disease caused by a deficiency in Vitamin D, leading to disordered calcium and phosphorus metabolism and resulting in abnormal skeletal development. It primarily affects infants, especially those under six months old, with the highest occurrence in infants under three months. The general symptoms include heightened neural excitability, such as fussiness, easy irritability, sudden bouts of crying, or being so sensitive that they cry when touched. Other symptoms include excessive sweating and frequent head shaking, though these are not specific indicators of rickets.

Diagnosis mainly relies on biochemical markers and Vitamin D levels, like decreased blood calcium and phosphorus levels, elevated parathyroid hormone levels, and reduced 25-hydroxy-D3. X-ray images of bones might appear normal.