What's wrong with my cat

Thank you for your question. It is difficult to say from your description what might be going on, but he does sound like he needs to see a veterinarian. He may have a parasite or an infection, and there may be medications that can help him quite quickly. Once you have him seen by a veterinarian, they will be able to let you know more what might be going on, and what treatment might help him.

Do you think my cat could have stud tail He's supposed to be fixed. But his hair has fallen out of his tail near his back. He's gotten pretty skittish around people touching him too.

Whilst stud tail is more often seen in intact cats, it is still possible for neutered males and even female cats to be affected by the condition. The presence of pus would indicate a secondary infection, but it would be advisable to visit your Veterinarian for an examination due to the rare nature of this condition. Regards Dr Callum Turner DVM

I just noticed a pimple like lump on the base of my intact male cat tail. It's round with a small bump in middle doesn't seem to be bothering him pain wise tho he is protective of too much handling of his tail. It is greasy around it too tho doesn't have a smell.

You may try to use a benzoyl peroxide shampoo based cat shampoo and monitor for any improvement, if you don’t notice any improvement or any other symptoms appear you should visit your Veterinarian for an examination to be on the safe side. Regards Dr Callum Turner DVM

So I definitely think my cat has stud tail he has patches of dark spots on tail and back. If I separate the hair I see the tiny black spots and his tail is almost black in one spot. Will it go away if I just continue to clean it with cat shampoo?

Stud tail is quite rare in cats, but you can use a benzoyl peroxide based shampoo to see if there is any improvements in the overall severity; if there is no improvement you should visit your Veterinarian for an examination to confirm the diagnosis and to try different treatment options. Regards Dr Callum Turner DVM

I have Siberian male, 2.5 yo, that seems to have Stud Tail. There is no swelling or any other sympthom except very greasy tail and slight smell. What should I do? Since I plan to breed him castration is not an option.

In this case it may be worth just bathing the affected area of the tail with benzoyl peroxide shampoo since this is due to an androgenic stimulation of the sebaceous glands; regular bathing should help it clear up if castration is not an option for you. Regards Dr Callum Turner DVM