Hip dysplasia is more common in Maine Coons than in most cat breeds. Studies have found meaningful rates of radiographic hip dysplasia in the breed, though many affected cats show no obvious lameness. Understanding the condition helps owners recognize subtle signs and ask the right questions before purchasing a kitten.

What hip dysplasia is

Hip dysplasia is abnormal development of the hip joint, resulting in a poor fit between the femoral head and the acetabulum. This can cause joint laxity, cartilage wear, inflammation, and eventually osteoarthritis. In cats, clinical signs are often less dramatic than in dogs, which means the condition can go unrecognized for years.

Genetics, body weight, and growth rate all contribute. Large, heavy cats carry more load on the joints, which is relevant for a breed that can exceed 15 to 20 pounds.

Signs owners may notice

Watch for reluctance to jump, reduced jump height, stiffness after rest, a bunny-hopping gait at speed, sensitivity when the hips are touched, reduced activity, or changes in grooming the lower back and hindquarters. These signs can also indicate other conditions, so veterinary evaluation is important.

Many cats compensate well and show only subtle changes. A cat that was once an enthusiastic jumper and gradually stops using high perches deserves a veterinary assessment.

How breeders screen

OFA hip evaluation and PennHIP distraction index are the two main radiographic screening methods used in cats. Both require sedation or anesthesia for proper positioning. OFA provides a grade; PennHIP measures joint laxity and compares it to breed norms.

Ask whether breeding cats have been hip-screened, which method was used, and what the results were. A breeder who screens and selects away from poor hip scores is making a meaningful effort to reduce prevalence in their lines.

Management and support

Maintaining a lean body condition is one of the most impactful things an owner can do. Excess weight increases joint load and accelerates cartilage wear. Provide ramps or steps to high resting spots, avoid forcing high jumps, and use appropriately sized litter boxes with low entry.

Veterinary management may include pain assessment, anti-inflammatory medications, physical rehabilitation, environmental modification, and monitoring. Joint supplements are sometimes used, but evidence for specific products varies; discuss with the veterinarian before adding them.

When to involve a specialist

A board-certified veterinary surgeon or radiologist can provide the most accurate hip evaluation and discuss surgical options when appropriate. Surgical intervention is less commonly pursued in cats than in dogs, but it is an option in some cases.

For a cat with confirmed hip dysplasia and progressive pain, a pain management plan developed with the veterinarian is important for quality of life.

Frequently asked questions

Can a Maine Coon with hip dysplasia live a normal life?

Many do, especially with weight management, environmental support, and appropriate veterinary care. Severity varies widely.

Is hip dysplasia the same as arthritis?

Hip dysplasia is a developmental condition that often leads to secondary osteoarthritis. Arthritis can also occur without dysplasia.

Should I avoid buying a Maine Coon if the parents were not hip-screened?

It is a reasonable concern to raise. Ask the breeder about their approach to orthopedic health and whether they have had affected cats in their lines.

Health note: This article is educational, not a diagnosis or treatment plan. Your veterinarian should make recommendations for your individual cat, especially when symptoms, medications, vaccination, nutrition, anesthesia, or breeding decisions are involved.

A practical next step

Ask your breeder for hip screening documentation and keep your cat at a lean body condition throughout its life. Discuss any gait or mobility changes with your veterinarian promptly. Learn about our health testing or join our waitlist.