Holland Lop Health & Wellness

Finding a Rabbit-Savvy Veterinarian

This is the most important step you can take before anything goes wrong. Not all veterinarians are experienced with rabbits — rabbits are considered exotic animals, and their physiology, appropriate medications, safe anesthesia protocols, and emergency care differ significantly from dogs and cats.

Seek out a veterinarian with specific exotic animal experience, preferably one who can demonstrate familiarity with rabbit-specific conditions like GI stasis, dental disease, and uterine cancer. The House Rabbit Society maintains a veterinarian directory organized by state. In Colorado, the Front Range has several excellent exotic practices.

Annual wellness exams are the standard of care for adult Holland Lops. Rabbits over five years old benefit from twice-yearly exams. Establish this relationship before you need emergency care.

GI Stasis: The Condition Every Owner Must Know

Gastrointestinal stasis — the slowing or complete stopping of gut motility — is one of the most common causes of death in pet rabbits. It is always an emergency. The University of Illinois College of Veterinary Medicine notes that GI stasis accounts for up to 25% of rabbit presentations to veterinary practices.

GI stasis is always secondary to an underlying cause: pain from another source, stress, an inappropriate diet, dental disease, a blockage, or other illness. Treating the stasis without identifying and addressing its cause will not resolve the problem.

Early signs are often subtle: fewer, smaller, or misshapen fecal pellets; reduced appetite; choosing not to eat favorite foods; sitting hunched rather than in a relaxed loaf position. Learn your individual rabbit’s normal baseline so that deviations stand out immediately.

Prevention centers on the fundamentals: unlimited hay, adequate exercise, proper hydration, and minimizing stress. Dental disease is a significant and often overlooked driver of GI stasis in Holland Lops — a rabbit in dental pain stops eating, which triggers gut slowdown.

Dental Disease: A Holland Lop Specific Risk

Holland Lops carry an elevated risk of dental disease compared to most rabbit breeds, due to their shortened skull structure. The brachycephalic (compressed) skull compresses the jaw, which alters how upper and lower teeth meet and are worn down. Research published in Veterinary Record (2024) found that lop-eared and dwarf breeds had significantly elevated rates of malocclusion and tooth root elongation.

Rabbit teeth grow continuously at approximately 1 cm per month for incisors. When teeth do not meet and wear correctly, overgrowth follows rapidly. Elongated teeth can cause pain, difficulty eating, drooling, tooth root abscesses, and in severe cases, roots that press into the nasolacrimal duct causing weeping eyes.

The most effective prevention is maximizing hay intake. Fibrous hay provides the abrasive grinding action that wears teeth down naturally. Pellets and soft foods require far less chewing and provide minimal dental wear. Holland Lop owners should consider dental health every time they fill the hay rack.

Ear Health: Unique to Lop Breeds

The anatomy that makes Holland Lops so visually distinctive also creates a specific health vulnerability. Lop ears reduce airflow into the ear canal — the pinna folds over and partially occludes the opening, trapping moisture, wax, and debris. Research published in PLOS ONE and biorxiv confirms that lop-eared rabbits have significantly higher rates of otitis externa, otitis media, and ear canal stenosis than erect-eared breeds.

Weekly ear checks are not optional for a Holland Lop — they are a minimum standard of care. At each check, look and gently sniff (healthy ears have no odor) for:

• Excessive dark wax buildup
• Redness, swelling, or discharge inside the canal
• Unpleasant odor
• Head tilting, head shaking, or pawing at ears
• Crusting on the inside of the pinna

If cleaning is needed, use only a product specifically labeled safe for rabbit ears — PetMD recommends Vetericyn Antimicrobial Pet Ear Rinse. Never insert anything into the ear canal and never use products designed for dogs or cats without explicit veterinary guidance. If infection is suspected, seek veterinary care promptly — untreated ear infections can progress to middle and inner ear disease, causing permanent neurological damage including permanent head tilt.

Uterine Cancer in Unspayed Does

Unspayed female rabbits face a significantly elevated risk of uterine adenocarcinoma as they age. Published estimates suggest the risk rises dramatically after age two, with some sources citing prevalence as high as 50–80% in unspayed does over four years of age, depending on breed. Holland Lop does are not exempt from this risk.

Spaying eliminates this risk entirely and is strongly recommended by most rabbit-savvy veterinarians unless there is a specific reason not to. The procedure is typically performed at five to six months of age, after the reproductive system is fully developed. Spaying should only be performed by a veterinarian experienced in rabbit anesthesia — rabbit anesthesia carries higher risk than in dogs and cats and requires specific protocol knowledge.

RHDV2 in Colorado

Rabbit Hemorrhagic Disease Virus Type 2 (RHDV2) is an extremely contagious and almost universally fatal hemorrhagic disease that has been present in Colorado since 2020. It spreads through direct contact, contaminated surfaces, clothing, shoes, vehicles, and potentially insects and birds. It does not require direct contact with an infected rabbit to spread.

A vaccine is available in the United States (Medgene Labs RHDV2 vaccine). The vaccination series involves two initial doses several weeks apart, followed by annual boosters. Because this vaccine is relatively new to the US market and protocol recommendations continue to evolve, we strongly encourage every Holland Lop owner in Colorado to discuss RHDV2 vaccination directly with their rabbit-savvy veterinarian. Timing, administration, and appropriate follow-up are decisions that belong with a professional who knows your individual rabbit and the current local disease landscape.

Grooming: Nails and Coat

Holland Lop nails grow continuously and should be trimmed every four to six weeks. Overgrown nails catch on surfaces, cause the foot to splay abnormally, and increase the risk of injury. Use small animal nail clippers and avoid the quick (the blood vessel visible in light-colored nails). If you are unsure, ask your veterinarian to demonstrate the technique at your first wellness exam.

Holland Lops have a short to medium length coat that benefits from gentle brushing once or twice per week, more frequently during seasonal molts (typically spring and fall). During heavy molts, daily brushing prevents ingestion of large quantities of fur, which — unlike in cats — rabbits cannot vomit. Ingested fur can contribute to GI blockage. Never bathe a rabbit in water unless directed by a veterinarian; the stress of a bath can induce shock, and damp fur in a small animal creates a dangerous drop in body temperature.

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