What type of parasitic infection can cause seborrhoea in dogs?

Demodicosis is caused by the overgrowth of Demodex mites, which are normal residents on a dog's skin in small numbers. When the immune system is compromised or the population of these mites increases significantly, it can lead to a condition known as demodectic mange, characterized by symptoms such as hair loss, itching, and seborrhoea.

Seborrhoea itself refers to an abnormal increase in the production of sebum, which can result in oily or flaky skin. In cases of demodicosis, the irritation and inflammation caused by the mites can disrupt the normal skin barrier and contribute to seborrhoeic conditions. This makes demodicosis a relevant parasitic infection associated with the development of seborrhoea in dogs.

Other types of skin infections, such as fungal infections or ear infections, may lead to different dermatological issues but not specifically to the same degree of seborrhoea as seen in demodicosis. Roundworm infestations primarily affect the gastrointestinal tract rather than the skin and would not typically be linked to seborrhoeic conditions in dogs. Therefore, the presence of Demodex mites is particularly significant for understanding the connection between parasitic infections and seborrhoea.