What causes a bald spot on my cat's back leg? Why is fur missing?

There can be several reasons for hair loss in cats, such as Infections (fungal or bacterial), overgrooming, allergies, or an underlying medical condition. I would recommend taking Mickey to his regular veterinarian to have it evaluated and started on any treatment if warranted.

Poor Almond! I'm glad to hear that she is acting normally despite her skin lesion. Common causes of areas of hair loss include allergies (to fleas, food or the environment), ringworm or mange. While this is not an emergent condition, a vet should examine Almond and may need to perform skin scrapes or cytologies to determine the cause of her skin lesion so that it can be managed appropriately.

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Moochie. This hair loss could be due to over-grooming. This could be caused by stress but in a cat her age it could be caused by a medical condition such as hyperthyroidism. I'd have her seen by a vet to get this checked out, and I recommend getting a geriatric blood panel and urinalysis done. I hope this helps!

[Allergies](https://www.petcoach.co/cat/condition/feline-allergies/) are the most common cause of hair loss and [excessive grooming in cats](https://www.petcoach.co/article/excessive-grooming-in-cats-what-it-means-and-how-to-help), but there are several other medical causes as well - including [fleas](https://www.petcoach.co/article/5-tips-to-get-rid-of-fleas/), bacterial or fungal infections, or skin mites. I would definitely start your cat on a good monthly spot-on product such as [Advantage II](https://www.petco.com/shop/en/petcostore/product/cat/cat-flea-and-tick/cat-flea-and-tick-drops/advantage-ii-once-a-month-cat-and-kitten-topical-flea-treatment-over-9-lbs) to make sure fleas are not the problem - you can get this over the counter at many pet stores. If this doesn't resolve the problem, you will need to have your cat examined by a vet - he/she can do some testing if needed to diagnose the problem and get your kitty the appropriate prescription medications to treat it. Behavioral causes, such as stress or anxiety, can also lead to overgrooming. [Calming supplements](https://www.petco.com/shop/en/petcostore/category/cat/cat-training/cat-training-calming-aids/calming-cat-supplements) or [pheromone products](https://www.petco.com/shop/en/petcostore/brand/feliway) can be found at the lcocal Petco. If these do not improve the condition, your veterinarian may recommend prescription strength remedies.

Hi Julia! This could be from an injury, Mumman may be over-grooming the area, or he could have a skin infection. I think it's best to have this examined, diagnosed, and treated by a vet. I hope this helps!

Yes I would have Luna checked by your veterinarian as this circular patch could be potentially a spot of fungal or bacterial infection, especially if it is not resolving and is getting bigger. Your veterinarian can easily confirm or rule out this clinical suspicion and treat appropriately.

The most common cause of hair loss around the tail is from flea allergies so I would definitely check her thoroughly for fleas. Other possibly causes are anal gland problems, seasonal allergies, ringworm, mites, infections. She should be examined by a vet to determine the cause and appropriate treatment.