Kitty litter that is made from clay or bentonite is slightly radioactive. GK Hart/Vikki Hart, Getty Images Cat litter is sufficiently radioactive that it can set off radiation alerts at international border checkpoints. Actually, it's not all cat litter you need to worry about -- only the stuff made from clay or bentonite.
Deep folliculitis is usually more severe. Follicles are densest on your scalp, and they occur everywhere on your body except your palms, soles, lips and mucous membranes. Damaged follicles are at risk of infection. The most common causes of follicle damage are: Friction from shaving or tight clothing.
Hair loss has many causes and fungal infections such as the dermatophytes which cause athlete's foot can cause hair loss in the scalp. Patients with fungal infections in their scalp have many different clinical presentations ranging from fine scaling of the scalp to a boggy, indurated red plaque called a kerion.