This condition could possibly be caused by a biological malformity (that may cause an obstruction) which may not allow enough room for the eggs to pass through. Or it could be caused by very large or malformed eggs that simply won't fit through the oviduct. Proper nesting sites and materials must be provided at acceptable temperatures. Malnutrition and dehydration are also attributing factors to egg-binding. Diagnosis and treatment should be performed by your vet. Treatment can vary from removal of the eggs and organs through surgery - to simple massage.