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Aging in cats is the process by which cats change over the course of their natural lifespans. The average lifespan of a domestic cat may range from 13 to 20 years. As cats senesce, they undergo predictable changes in health and behavior. Dental disease and loss of olfaction are common as cats age, affecting eating habits.
Abdominal tumor is among the rarest forms of cancer in cats, and most difficult to treat successfully before progressing to an advanced stage. [13] The main symptoms include abdominal enlargement, [3] vomiting (often with blood), weight loss due to poor digestion, and weakness. [13]
Hashimoto's thyroiditis, also known as chronic lymphocytic thyroiditis, Hashimoto's disease, and autoimmune thyroiditis is an autoimmune disease in which the thyroid gland is gradually destroyed. [7] [1] Early on, symptoms may not be noticed. [3] Over time, the thyroid may enlarge, forming a painless goiter. [3]
Occurrences of AIT are most common in patients with prior thyroid disease such as Hashimoto's thyroiditis or thyroid cancer. The most common cause of infection in children is a congenital abnormality such as pyriform sinus fistula. [5] In most cases, the infection originates in the piriform sinus and spreads to the thyroid via the fistula. [7]
Cats will adjust their eyes during the day, allowing less light to filter in, while their pupils will expand at night to allow for more light, Purina reports. Feline eyes also have more "rods ...
Though cases of infection are rare, cats seem especially susceptible to the bird flu virus, or Type A H5N1. Even before the cattle outbreak, there were feline cases linked to wild birds or poultry.
During these episodes, affected cats can be extremely difficult to distract from their behaviour, and often appear to be absent-minded or in a trance-like state. [4] [5] Overall, the prognosis for the syndrome is good, so long as the syndrome does not result in excessive self-aggression and self-mutilation that may lead to infection. [1]
Chronic kidney disease occurs more frequently in older cats: Over 50% of affected cats are seven years old or older [17] and 30% of all cats over 9 years of age show elevated blood levels of nitrogen compounds . [16] However, the disease can occur as early as 9 months of age. [17]