Understanding Endocrine Health in Boston Terriers

Quick answer

Boston Terriers are known to have a recognised tendency toward pituitary-dependent hyperadrenocorticism, often referred to as Cushing’s disease. This condition occurs when the body produces an excess of cortisol. Because symptoms can be gradual and mimic normal aging, consistent home monitoring of your dog's behavior, skin quality, and drinking habits is essential for early detection.

Understanding Pituitary-Dependent Hyperadrenocorticism

Hyperadrenocorticism, also known as Cushing’s disease, is a condition where the adrenal glands produce too much cortisol. In Boston Terriers, there is a well recognised tendency for this to be pituitary-dependent. This means a small growth on the pituitary gland signals the adrenal glands to overwork. This is a recognised tendency in the breed, and how this passes down is not settled.

At home, you might first notice that your dog seems constantly thirsty or is needing to go outside to urinate more frequently. They may also develop an insatiable appetite or appear to have a pot-bellied appearance. Because these signs develop slowly, owners often mistake them for typical aging, which is the most common mistake that wastes time. If you notice your dog is drinking more than usual, do not wait to see if it resolves on its own.

When you visit the clinic, the vet will perform blood work and urinalysis to screen for metabolic changes. If these results raise suspicion, they will use specific hormone stimulation or suppression tests to confirm the diagnosis. Imaging, such as an ultrasound or an MRI, may be used to visualize the glands and the pituitary area.

Recognising Dermatologic Signs of Cushing's Disease

One of the most visible ways hyperadrenocorticism presents is through the skin and coat. This is a recognised tendency in the breed, and it often serves as an early warning sign for owners. You may notice that your dog’s hair is thinning, particularly on the trunk, or that the skin appears thinner or less elastic than usual.

In addition to hair loss, the skin may become darker or develop a leathery texture. Some dogs may experience slow wound healing or recurrent skin infections that do not respond well to standard treatments. Because these skin changes can be mistaken for simple allergies, it is important to look at the whole picture. If your dog has skin issues alongside increased thirst or a change in energy levels, bring these observations to your vet immediately.