Serpent (symbolism) The serpent, or snake, is one of the oldest and most widespread mythological symbols. The word is derived from Latin serpens, a crawling animal or snake. Snakes have been associated with some of the oldest rituals known to humankind and represent dual expression of good and evil.
1 Osteoporosis, a condition characterized by reduced bone mineral density and increased bone fragility.  Rickets, a childhood disease characterized by impeded growth and deformity of the long bones. The earliest sign of subclinical vitamin D deficiency is craniotabes, abnormal softening or thinning of the skull.
About complications: Complications of Vitamin D deficiency are secondary conditions, symptoms, or other disorders that are caused by Vitamin D deficiency. In many cases the distinction between symptoms of Vitamin D deficiency and complications of Vitamin D deficiency is unclear or arbitrary. Next. Search Specialists by State and City.