Conservatism in accounting means being careful in reporting items in the financial statements. Conservatism follows these ideas: 
• Anticipate no gains, but provide for all probable losses.
• If in doubt, record an asset the lowest reasonable amount and reliability at the highest reasonable amount.
• When there is a question, record an expense rather than an asset.
• When you are faced with a decision between two possible options, you must choose the option that undervalues, rather than overvalues, your business
The purpose of conservatism is to report realistic figures and never exaggerate assets or net income