Ferrets are especially fond of tunneling under towels and prefer to sleep in this manner. The objectionable odor of pet ferrets is primarily the result of the influence of sex hormones on normal skin secretions. Consequently, castrating male and spaying female ferrets is usually sufficient to control this problem. It is usually done at around 8 months of age. Castrating male ferrets also helps reduce any aggressive tendencies.
Some owners also have their pet ferrets descented.
When awake, ferrets generally exhibit constant activity. They can be easily picked up, however, and gently restrained by using both hands to support their weight and provide security from falling and injury. Ferrets can also be easily restrained for examination, laboratory sample collection, and treatment by gently suspending them off their feet by the nape of the neck. The relaxation that results from this method is similar to that exhibited by very young mammals as they are carried in their mother's mouth from one place to another. Other medical conditions are also briefly discussed below.