Kanye West has reportedly banned Kim Kardashian from undergoing cosmetic surgery.

The 'Stronger' hitmaker - whose mother Donda tragically died from surgery complications after a breast reduction and liposuction in 2007 - is having a clause written into their pre-nuptial agreement stating she will have to pay a reported $500,000 if she has any work done and he is said to have warned her their wedding is off if she goes under the knife before their big day after discovering an email from a surgeon about secret plans for surgery.

A source said: ''Kim met with her surgeon to discuss having a nose job and liposuction on her thighs and tummy before their wedding next summer.

''She was planning to do it in March when Kanye would be working in Paris. She hoped by the time he returned to Los Angeles she would have healed and Kanye would never know.

''He flipped and said if she went ahead with the procedures then the wedding was off.''

Kim is currently managed by her mother, Kris Jenner, but Kanye - who has a five-month-old daughter, North, with the socialite - is also having a clause inserted into the pre-nup which limits the control his future mother-in-law will have.

The insider explained to heat magazine: ''Kanye's also inserted a mother-in-law clause which means Kris will have no say in decisions which affect them as a couple. Even work ones.''

The pair will also have to pay financial penalties if one of them cheats on the other, though insiders insist this is a ''standard'' clause.

The source added: ''There's also an infidelity clause like Khloe and Lamar had, which states they would receive $250,000 if the other person cheats, and a drug clause stating both would be subject to random drug testing at the other's wishes. It's standard - they're just planning for every eventuality.''