According to WebMD, stud tail is a condition in cats that causes over-secretion of the sebaceous glands located at the tail base, which in turn causes waxy build-up, infection and hair loss at the tail. Stud tail is most common in male cats and is treatable with medicated shampoos.
Pet MD explains that hair loss is common in cats with cancer, hormonal imbalances and nervous disorders. Additional causes include skin allergies and ringworm infections. Hair loss in cats is referred to as alopecia. Additional symptoms include redness, scabbing and loss of skin. It is important for pet owners to consult with a veterinarian if their cats are experiencing signs of alopecia to ensure proper diagnosis and treatment.