Johnny Hyde apparently arranged for Marilyn to have a small amount of cartilage removed from her nose although there are no documents to back this up. She did however have a chin implant. Below is a document discussing how the implant had been absorbed. There was also a small scar on her chin.
It is suggested that she also had her teeth "fixed" despite her modelling documentation stating her teeth were "perfect." There are no documents to suggest she had ever had dental surgery nor electrolysis.