[Flat chested sex doll](https://www.sexdolltech.com/product-category/shop-by-categories/sex-doll-body-type/small-breast-sex-dolls/)s, which are often purchased for their petite, realistic, or anime-inspired designs, are no exception to this requirement. Over time, if not cleaned properly, the skin can harbor bacteria, oils, and residues that not only degrade the material but also pose hygiene risks. Deep cleaning ensures that beyond the superficial wipe-down, the pores and grooves of the material are sanitized and refreshed, reducing risks of odors, stickiness, and deterioration.