Information

Entropion

Entropion is an abnormal inward rolling of the upper or lower eyelids, causing abnormal, painful friction with the surface of the eye. Entropion is especially irritating to the cornea, or the curved, clear part of the eye. Lower eyelid entropion is most common, and usually occurs toward the outside edge of the eye. The abnormal rolling of the eyelid may introduce hair directly onto the cornea and conjunctiva, causing scratches, ulcers, inflammation, discharge and pain.

https://www.petmd.com/cat/conditions/eyes/c_ct_entropion

FIV

Feline immunodeficiency virus (FIV) is a virus that’s found in domestic cats that attacks the immune system.
FIV-positive cats may have the virus in their system for years before showing signs of illness. 
The virus works by killing or damaging cells in a cat's immune system, often targeting white blood cells. The ongoing damage of FIV in cats eventually leads to a weakening of the immune system. Once that happens, cats with FIV can become vulnerable to secondary infections.

https://www.webmd.com/pets/cats/cat-fiv-feline-immunodeficiency-virus

Ataxia 

An ataxic cat may look like they are drunk, with a wobbly gait, swaying, and increased drowsiness. They may also have more subtle symptoms, such as a mild head tilt or a curling under of the toes while walking.  There is a long list of possible causes of ataxia, depending on whether the condition is vestibular, sensory, or cerebellar. Sometimes a cause cannot be determined even with extensive testing.

https://www.petmd.com/cat/conditions/neurological/c_ct_ataxia#

FIP

Feline infectious peritonitis (FIP) is a viral disease caused by a feline coronavirus that affects wild and domestic cats. This type of coronavirus is different from the coronavirus that causes COVID-19 in people. Feline coronavirus is very common and usually doesn't cause any serious issues, aside from mild diarrhea. But when the feline coronavirus changes to a specific strain of the coronavirus, FIP can develop. In about 10% of infected cats, the virus will multiply and mutate, resulting in an infection known as feline infectious peritonitis virus (FIPV) that spreads throughout the cat’s body. It can cause an extreme inflammatory reaction in the tissues surrounding the abdomen, kidney, or brain. Although FIP is not believed to be contagious, it is a very serious disease. When a cat gets FIP, it is progressive and almost always fatal. 

https://www.webmd.com/pets/cats/cat-fip-feline-infectious-peritonitis

FCoV

Feline coronavirus is very contagious. Infections are very common in cats around the world, including the UK. But it is more common in large groups of cats, such as multi cat households and breeding catteries. It's also common in young cats, often under two years old, but it can be seen in older cats too. In most cats, feline coronavirus causes no symptoms or only mild transient diarrhoea that gets better without treatment within a few days. Sometimes feline coronavirus causes the more serious condition of feline infectious peritonitis or FIP.

https://www.bluecross.org.uk/advice/cat/health-and-injuries/feline-infectious-peritonitis

Ear Snip/Cut

Ear-tipping is the universally accepted way to tell whether a feral cat has been neutered or spayed. This is typically performed as part of a TNR (trap-neuter-return) program.

Stomatitis

Stomatitis is a chronic inflammatory disease which often requires life-long treatment. Stomatitis is one of the few dental diseases in cats that often causes signs of pain once severe. Clinical signs can include weight loss, salivation, dropping food, inappetence or anorexia, hiding, vocalising/hissing at the food, failure to groom, reluctance to yawn, and halitosis (bad breath). Unfortunately, the cause of stomatitis is not known at this time. It is considered to be an atypical immune response to one or more etiologic agents.The first step in the treatment of stomatitis is removal of some or all of the teeth. The reasoning behind such an aggressive first line of treatment involves the removal of all plaque retentive surfaces (i.e. teeth) in the mouth and thus reduction of oral bacteria. It is characterised by severe inflammation of the gingiva and the mucosa in the mouth.

https://animaldentalspecialist.com/stomatitis/

Epilepsy 

Seizures in cats come from an abnormal electrical activity in the brain. Idiopathic epilepsy is a hereditary disorder of the brain that occurs for an unknown reason. Idiopathic, or primary, epilepsy is the diagnosis made in cats when there is no structural cause for the seizures but there is abnormal electrical activity. Symptomatic epilepsy involves seizures where structural changes to the brain are seen on advanced imaging, such as an MRI. Idiopathic epilepsy is rare in cats, but is certainly a possible diagnosis if your cat develops seizures. While still rare, cats are more likely to have structural changes, therefore most epilepsy in cats is classified as symptomatic. Depending on the underlying cause of epilepsy in cats, seizures can start at anytime in life, young or old.

https://www.petmd.com/cat/conditions/neurological/epilepsy-cats