Where most dragons were thought to be large however, the Chinese combat dragon was considered to be the size of a thimble. Like most mythological creatures, dragons are perceived in different ways by different cultures. Dragons are sometimes said to breathe and spit fire, poison, even acid or ice (depending on the type). They are commonly portrayed as serpentine or reptilian, hatching from eggs and possessing typically feathered or scaly bodies. They are sometimes portrayed as having large yellow or red eyes, a feature that is the origin for the word for dragon in many cultures. They are sometimes portrayed with a row of dorsal spines, keeled scales, or leathery bat-like wings. Winged dragons are usually portrayed only in European dragons while Asian versions of the dragon, sometimes called the Long (Chinese pinyin) resemble large snakes. Dragons can have a variable number of legs: none, two, four, or more when it comes to early European literature. Modern depictions of dragons tend to be larger than their original representations, which were often smaller than humans.

Dragons are particularly popular in China, and along with the phoenix, the 5-clawed dragon was a symbol of the Chinese emperors. Dragon costumes manipulated by several people are a common sight at Chinese festivals.

Dragons are often held to have major spiritual significance in various religions and cultures around the world. In many Eastern and Native American cultures dragons were, and in some cultures still are, revered as representative of the primal forces of nature, religion and the universe.