Stud tail is co called because it is generally found in the unaltered tomcat, although it can affect females. It is the build up of a brown secretion caused by the release of oils from the gland on the upper surface of the cat's tail, near the base. You may also notice swelling, blistering and hair loss in this area.
This condition can be controlled easily by washing and completely drying the affected area on a regular basis. If the skin is red and sore, your veterinarian may prescribe a balm to apply. As long as your cat remains unaltered, he will continue to secrete excessive oil from the glands at the base of the tail so vigilance is necessary to keep him comfortable.
What about dandruff? Just like you, your cat may develop dandruff, and for just about as many reasons. If he is light colored, you may not notice the dandruff, but if his coat is dark, you will be able to see the dandruff clearly.
In either case, simply petting or brushing him will bring the dandruff to the surface. Do not panic if you see a small amount of dandruff. This is normal because the skin changes and is shed periodically.
However, if the condition is severe, have him checked by the veterinarian. Excessive dandruff can be associated with almost any skin condition. Altered cats and older cats tend to have more dandruff than unaltered and younger ones.
The natural process of aging will probably cause your cat to gradually develop a thicker and drier coat and scaly skin, which might cause dandruff. Feeding a complete and balanced diet with omega 6 and omega 3 fatty acids may be helpful.
You will probably not be able to cure the dandruff completely but you may be able to control it. Besides washing and drying the affected area regularly and then combing your cat's tail thoroughly, there is little you can do to treat stud tail.
You will easily be able to detect dandruff on your dark colored cat. However, if your cat has a light colored coat, you may have to inspect it more closely. Either way, regular combing of his coat should help this skin condition.