Feline Hair Loss
Alopecia is defined as the absence of hair from areas that are normally hairy. Hair loss may involve thinning of the hair or complete hair loss. Itching may or may not be a factor.
Excessive exposure to the sun can cause a skin condition called Solar Dermatitis. This is primarily a problem in breeds with sparse fur like the Sphynx. Skin areas that are lightly pigmented and cats with white skin are also at risk. The ear flaps are the most common site affected.