References

Beaver B, Terry M, LaSagna C Effectiveness of products in eliminating cat urine odors from carpet. J Am Vet Med Assoc. 1989; 194:1589-91

Bowen J, Heath S A Feline house-soiling and marking behaviour.Philadelphia, PA: Elsevier Saunders; 2005

Ellis SL, Rodan I, Carney HC AAFP and ISFM Feline environmental needs guidelines. J Feline Med Surg. 2013; 15:(3)219-30

Grigg E, Pick L, Nibblett B Litter box preference in cats: covered versus uncovered. J Feline Med Surg. 2012; 15:280-4

Halls V, Heath S History taking and diagnosis in cases of feline house soiling. The Veterinary Nurse. 2015; 6:(5)281-7

Neilson J Thinking outside the box: feline elimination. J Feline Med Surg. 2004; 6:5-11

Treatment in cases of feline house soiling

02 October 2015
10 mins read
Volume 6 · Issue 8

Abstract

Treatment for house soiling is based on extensive diagnostic investigation to rule out medical causes and history taking to enable specific stressors to be identified and reduced or removed. These stressors may be present in the physical or social environment or in the owners' general husbandry and management of the cats. In the case of the marking cat the aims of treatment are to remove the cause of the unnecessary marking and to re-establish the home as a part of the cat's safe and secure core territory; while for the cat with unacceptable elimination, related to primary environmental or social factors, the aims are to re-establish appropriate associations with locations and substrates.

In part one of this article extensive history taking, identification of stressors and differentiation between underlying motivations were discussed (Halls and Heath, 2015). Where research is lacking, the recommendations within this article reflect the accumulated experience of the co-authors.

Once a history has been taken and a diagnosis made, the next step in addressing house soiling problems is to give advice based on the diagnostic investigation and history taking, to assist owners in removing or reducing the impact of the stressors that have been identified. This is a process that takes time and experience. In some cases it may be appropriate to refer directly to a suitably qualified behaviourist with a particular interest in cats. This decision will depend on numerous factors, including:

  • The duration and intensity of the problem
  • Whether the cat has access to outdoors
  • The suitability of the environment to meet the needs of the cat
  • The sociability of cats (in multi-cat homes)
  • The owner's expectations, flexibility and anticipated compliance
  • Financial considerations.
  • If first opinion advice is given, based on the diagnostic process outlined in part one of this article (Halls and Heath, 2015), then it is important to encourage feedback weekly so that progress can be monitored and further advice can be given or the client referred to a behaviourist within an agreed timescale.

    The most important aim of any treatment intervention for house soiling is to identify and remove (or reduce) the stressors impacting on the cat's behaviour. These stressors may be present in the physical or social environment (Halls and Heath, 2015). In addition, the physical environment should be optimised by ensuring that the five pillars of the cat's environmental needs are met (Ellis et al, 2013) (Box 1).

    The five pillars of feline environment needs

  • Provide a safe place
  • Provide multiple and separated key environmental resources
  • Provide opportunity for play and predatory behaviour
  • Provide positive, consistent and predictable human–cat social interaction
  • Provide an environment that respects the importance of the cat's sense of smell
  • Dealing with stressors

    Potential causes of stress can be sub-divided into categories relating to the physical and social environment and the husbandry and management of the feline household. Within each of these categories there will be many potential stressors and the significance of each one for the individual cat will have been established through the extensive history taking discussed in part one of this article (Halls and Heath, 2015). Treatment of house soiling problems involves ensuring that these stressors are not an issue in the cat's environment and modification of the physical and sometimes the social environment will be necessary as part of the approach.

    Stressors in the physical environment

    The physical environment includes the property where the cat is housed and the outside environment. Even if a cat is confined indoors it may have exposure (visual, auditory or olfactory) to external challenges. In addition novel and threatening odours from outside can be brought into the house via shoes, clothing and shopping bags and it is therefore impossible to protect the house-bound cat entirely from the outside world. As a result of its territorial nature, factors outside of the control of the owner, such as the cat population in the area and the geography of the surrounding terrain, all have the potential to cause stress. Within the property any factors, such as layout, which can make it difficult for a cat to access important or vital resources, need to be considered and rectified if possible. Cats may feel vulnerable due to a lack, real or perceived, of opportunities to escape or hide from perceived threat. This can be exacerbated by the social environment, for example in multi-cat households, and therefore treatment must always address both physical and social factors.

    Cats often use high perches when they feel threatened to enable them to observe things from a safe distance without fear of being physically confronted. Provision of suitable elevated observational platforms, which can take the form of the tops of bookcases (Figure 1a) and kitchen cupboards or be delivered in the form of a purpose built cat tower (Figure 1b), will increase the cat's ability to control its own stress

    Figure 1a. Two siblings using a bookcase as an observational platform.
    Figure 1b. Cat scratching towers can provide high perches for observation and rest.

    Patio doors and glass walls, popular in modern extensions, create high ambient light conditions and may prevent the cat from being hidden (or camouflaged) from any threat that may be present outside. The distinction between safe and dangerous, when the external environment can be viewed without obstruction, appears to blur boundaries for some sensitive cats, leading to problems such as urine marking indoors.

    A cat flap may be a positive addition to the home if it enables a cat to have control over entry and exit. This gives it the opportunity to patrol in a routine pattern at set times to reduce the risk of encounters with other cats inhabiting the same territory. However a cat flap can also represent a breach in the defences of the cat's core area and blur the distinction between safe and unsafe sectors of its territory.

    In multi-cat households the provision of enough resource stations to allow every cat the opportunity to have free and immediate access to resources at all times is essential (Bowen and Heath, 2005). In cases of unacceptable elimination, access to litter trays and where they are placed is of particular importance. In multi-cat households it is possible for access to be blocked by other cats (Neilson, 2004) especially if the thoroughfares within the house are narrow. Positioning of litter trays next to one another can be particularly stressful if more than one cat has the need to use the facilities at the same time (Figure 2) and such juxta-positioning can be detrimental with other resources as well. Placing food bowls, water bowls and beds (Figure 3) in close proximity to one another should be avoided.

    Figure 2. Positioning litter trays next to each other can be stressful.
    Figure 3. Placing resources in close proximity to each other should be avoided.

    Some properties, such as one-bedroom or studio flats, have an area that can be viewed in its entirety from one location. This would make it extremely difficult for a cat to find private places of safety, without fear of being disturbed.

    Removal from the physical environment, either permanently or temporarily, represents a change in territory, for example a property move (representing a new territory for the cat) or a period of time in a boarding cattery or the veterinary hospital. Changes to the physical environment can also be challenging such as decoration, building work or new floor coverings.

    Inadequate or absent resources is a common source of potential stress. The value of each resource will differ according to the needs and circumstances of the individual.

    Consider the outdoor environment

    There are some stressors that are particularly relevant to the external physical environment. This is an aspect of the cat's lifestyle about which the owner has little or no knowledge so establishing stressors outside the immediate home can be challenging. Stressors to explore include:

  • Change or disruption to favoured latrine site or hunting ground
  • Regular thoroughfares blocked or removed due to garden or house redesign elsewhere in the cat's territory.
  • Stressors in the social environment

    The social environment is sub-divided into stressors associated with other cats and those associated with humans or other species. Intra-species stressors include:

  • Incompatible house companions
  • Introduction of a new cat
  • Return of a cat into the household after a period of absence (e.g. hospital visit)
  • New cat in the neighbourhood
  • High cat population in the territory.
  • The significance of owners as potential stressors is often overlooked as the majority of cat–human relationships are positive for both parties. However, there are some situations (despite positive intentions on the part of the owner) that can be highly distressing for the cat. Considerations for inter-species stressors include:

  • Long-stay visitors, the arrival of a new baby
  • Unpredictable owner, erratic behaviour
  • Owner absence
  • Intrusive interactive style — over-fussing, initiating all contact, constant focus on the cat
  • Introduction of a dog — without care in the introduction phase or provision of escape routes for the cat.
  • Husbandry and management

    The lifestyle imposed on the cat through the owner's husbandry and general management style can have a profound impact, including:

  • Inadequate cleaning regimen of litter facilities (Grigg et al, 2012)
  • Intermittent or erratic access outdoors
  • Lack of ‘cat-friendly’ provisions in the home.
  • Aims of treatment

    In the case of the marking cat the aims of treatment are to remove the cause of the unnecessary marking and to re-establish the home as a part of the cat's safe and secure core territory (See Box 2), while for the cat with unacceptable elimination the aims are to re-establish appropriate associations with locations and substrates. In both cases dealing with identified stressors is a crucial part of the treatment process. See section above on Dealing with Stressors.

    Territory

    The cat's territory is divided into three parts:

  • Hunting range — the entire area over which the cat roams
  • Home range — the area a cat will actively defend against invasion
  • Core area (den) — the area that is sheltered and safe for eating, sleeping, resting and playing
  • Within the territory there will often be a series of thoroughfares connecting separate areas together. The dimensions of the territory for a domestic cat will differ greatly depending on access to outdoors, the density of the cat population, both inside and outside the home, and the temperament of the individual. The core area may be as large for some as the internal dimensions of the whole property or be as little as a small space inside a wardrobe, for example.

    Treatment of marking

    Step-by-step plan

  • Neuter to eliminate sexually motivated marking
  • Perform a complete stress audit, using floor plans of the homes, photographs to illustrate layout and locations of resources, and a comprehensive behaviour questionnaire (see Part 1 History taking and diagnosis in cases of feline house soiling (Halls and Heath, 2015)).
  • Identify and remove/reduce stressors
  • Use pheromonatherapy (Feliway®; Ceva Animal Health) at marked sites (see Box 3)
  • Provide a healthy environment (See Box 1)
  • Consider nutraceuticals, where appropriate
  • Use psychopharmacology for intractable cases, where appropriate (these cases should be referred).
  • Pheromonatherapy

  • Install one Feliway® Diffuser (Ceva Animal Health) per 50–70 m2 floor space
  • Do not plug in behind a door, curtain or underneath furniture or near an open door or window
  • Leave the device switched on
  • Replace the refill as required
  • Use Feliway® spray on new objects
  • Use water, surgical spirit or an odourless solution to treat the marked area
  • Feliway® spray can be used in addition to the diffuser to treat a particular area where marking persists
  • Spray previously marked sites with Feliway® spray once a day for 30 days
  • Treatment for elimination related to primary environmental or social factors

    Treatment of elimination-related house soiling problems involves three key areas: dealing with potential disease, addressing litter facilities and emotional motivations.

    Step-by-step plan

  • Perform a complete stress audit, using floor plans of the homes, photographs to illustrate layout and locations of resources, and a comprehensive behaviour questionnaire (see Part 1).
  • Identify and remove/reduce stressors
  • Provide a healthy environment (See Box 1)
  • Optimise litter facilities* (see Box 4)
  • Clean previously soiled sites effectively and deny access, if appropriate (see Box 5)
  • Provide additional therapies, such as pheromonatherapy, where applicable.
  • Optimum litter facilities

  • One litter tray per cat in the household plus one extra, positioned in separate sites, (e.g. for a three cat household, four trays are provided)
  • If multiple cats are resident, and social groups have been identified, it may be sufficient to provide one litter tray per social group plus one extra
  • At least one litter tray on each floor of the house
  • Positioned away from food and water
  • Positioned away from thoroughfares, glass windows, cat flaps, entry and exit points (all potentially perceived as unsafe)
  • Each tray to be rectangular and 1.5 x the length of the cat from the nose to the base of the tail (minimum size 22” (49.5cm) x 17” (38cm)
  • Range of covered or open trays (most cats prefer open trays, in the authors' experience)
  • Sand-like clumping non-scented substrate, to a depth of 1.25-1.75” (3–4 cm)
  • Clean by scooping solids and clumped urine at least twice daily, top up with fresh litter if necessary to the previous level
  • Empty entire contents once a week, wash with mild detergent and hot water, and refill with fresh litter to the previous level
  • Do not use polythene litter tray liners or deodorant additives
  • Cleaning regimen

    Spray Bottle A: 10% solution of biological washing powder/liquid in warm water

    Spray Bottle B: Plain water

    Spray Bottle C: Surgical spirit

  • Remove excess urine with paper towel and discard
  • Spray the surface with Bottle A. Mop the surface with paper towel and discard
  • Spray the surface with Bottle B. Mop the surface with paper towel and discard
  • Spray the surface with a light mist of Bottle C. Allow to dry naturally (30 mins)
  • Alternatively a commercially available enzymatic cleaner can be used according to the manufacturer's instructions. These products vary in their efficacy (Beaver et al, 1989)
  • Always test a small area with the cleaning product to check for any discolouration as a result
  • Badly affected carpet may need to be removed and discarded, together with the underlay beneath, and the floor below treated
  • (Bowen and Heath, 2005)

    *Optimum litter facilities should be installed in addition to any trays that are already provided and a diary of elimination habits recorded to establish the cat's preference. Trays can then be removed accordingly, if appropriate. Attention should not be drawn to the new facilities to encourage the cat's freedom of choice.

    Rehoming

    As the cat is a territorial species its wellbeing is closely linked with its social and physical environment, irrespective of the love and care that the owner bestows. In some cases it may be established that the environment does not meet the fundamental needs of the individual and that keeping the cat in that home would seriously compromise its emotional and physical wellbeing. In cases such as this it is helpful to sensitively counsel the owner to this effect and encourage them to consider rehoming to a more suitable environment for the individual, such as a home as a single cat or one where access outdoors can be obtained. Owners often feel a complicated mix of emotions in this situation, including guilt, abandonment and failure. It is important to reassure them that these feelings, although painful and real for them, are not appropriate and that it is an act of great courage and selfless-love to decide to do what is best for the cat. If the rehoming process is handled by an animal charity, it is essential to ensure that all the medical and behavioural background is disclosed and that the team are aware of the cat's specific requirements.

    Owner-elected euthanasia

    There may be occasions when the owner is so distressed by the problem (viewed as unresolvable) and therefore requests euthanasia on those grounds. Once again sensitive counselling is required as these clients are undoubtedly at the ‘end of their tether’ and feel that this is the only way out of a difficult situation. It would be helpful to ensure they understand that there is a solution to this problem and that, if they do not feel able to work through it with a programme of recommended changes, the cat can be rehomed safely in the knowledge that no further house soiling will occur if the new environment meets the cat's needs.

    Conclusion

    Treatment of house soiling cases is time consuming. Diagnostic investigation and exhaustive history taking is required to correctly identify and reduce or remove relevant stressors. Resource distribution within the household, for example litter trays, feeding areas, beds, high perches, hiding places and scratching posts, should also be optimised. When these cases are tackled in practice it is important to get feedback, after advice is implemented, to ensure that those cats not responding favourably to the changes are swiftly referred to a suitably qualified behaviourist.

    Key Points

  • Refer complex cases directly to a suitably qualified behaviourist
  • Causes of stress need to be identified and removed wherever possible
  • In cases of marking, treatment aims to re-establish the home as part of the cat's safe core territory
  • In cases of unacceptable elimination, treatment aims to establish appropriate associations between litter locations and substrates
  • Rehoming may be necessary if the environment does not suit the fundamental needs of the individual