01/19/2026
Source: American Association of Equine Practitioners
Some of the most common conditions we see in our beloved elderly equine companions are PPID/Cushing's (pituitary pars intermedia dysfunction), decreased/inadequate dentition, and osteoarthritis.
Even though these conditions may be common and ongoing for our older horses, it's also important to be aware of some of the secondary issues that can be a result of the primary problem. Here are some examples (please note this is not an exhaustive list):
PPID/Cushing's Disease:
- We tend to see weight loss and muscle atrophy as a result of this endocrine disorder.
- A decreased immune system and delayed healing for wounds is also common.
- Uncontrolled Cushing's cases can lead to laminitis.
Decreased/Inadequate Dentition:
- Horses may experience weight loss and muscle atrophy when not managed properly. This is due to their reduced ability to chew properly, making it harder for them to digest food.
- Consequently, not being able to chew food efficiently for proper digestion can lead to colic.
- Food that is not thoroughly chewed is also a choke risk.
Osteoarthritis:
- Horses can experience weight loss and muscle atrophy when not managed properly. This can be caused by reduced movement to access enough food and water (particularly in turnout) due to the pain they are experiencing.
- Consequently, reduced food and water intake can lead to colic.
- You may observe behavioral changes in horses with osteoarthritis due to their pain.
The good news is that by working with your veterinarian and proper management, these conditions, along with their secondary issues, can in most cases be successfully managed to give your senior relief and a good quality of life.
It's important to remember that horses are individuals, if you have questions or concerns about your specific equine, contact your veterinarian.
Thank you to the Horse Owner Education Committee for providing this information. This information, plus additional senior horse care tips, can be found by watching our senior horse care webinar here: https://aaep.org/guidelines-resources/horse-owner-resources/horse-owner-education-webinars/