Preventing bacterial growth is a critical concern in the manufacturing and maintenance of sex dolls, given the intimate nature of their use. Manufacturers employ several strategies to ensure hygiene and safety. Firstly, many dolls are made from non-porous, hypoallergenic materials such as silicone or thermoplastic elastomers, which do not harbor bacteria easily and can be cleaned thoroughly. These materials are resistant to absorbing liquids and contaminants, making them ideal for maintaining hygiene. Additionally, many dolls feature removable, washable parts like heads or internal inserts, allowing users to clean thoroughly after each use. Manufacturers often recommend specific cleaning protocols, including the use of antibacterial soaps, disinfectants, and warm water, to eliminate germs effectively. Some dolls are designed with built-in drainage systems or smooth internal surfaces to facilitate cleaning and drying. Moreover, developers are exploring antimicrobial coatings and treatments that inhibit bacterial growth on the surface of the dolls, further enhancing safety. Proper storage practices, such as keeping dolls in dry, ventilated environments, also play a vital role in preventing microbial proliferation. Overall, a combination of material choice, design considerations, and user education helps manufacturers address bacterial concerns and promote safe, hygienic use.