Your grandmother’s behavior of licking doorknobs may be related to a condition called pica, which can sometimes occur in people with dementia. Pica is a disorder where a person has cravings to eat or lick non-food items[8].
In dementia patients, pica can manifest as eating or licking strange things like doorknobs, dirt, or other inedible objects. This behavior often happens when the person is feeling stressed or upset[8].
As dementia progresses, it can affect parts of the brain that control behavior and impulses. This may lead to unusual actions like licking doorknobs. Your grandmother might not understand that this behavior is inappropriate or potentially harmful.
Some reasons why this could be happening include:
1. Sensory seeking: Dementia can alter how the brain processes sensory information. Your grandmother may be seeking different textures or sensations by licking doorknobs.
2. Confusion: She might mistake the doorknob for something edible due to changes in her perception.
3. Stress or anxiety: Pica behaviors in dementia patients often increase when they’re feeling anxious or overwhelmed[8].
4. Nutritional deficiencies: Sometimes, pica can be related to vitamin or mineral deficiencies, though this is less common.
5. Medication side effects: Certain medications can cause unusual behaviors or increase appetite, which might contribute to pica-like symptoms.
It’s important to address this behavior for your grandmother’s safety. Doorknobs can harbor germs and bacteria. You should consult with her doctor to rule out any underlying medical causes and discuss management strategies. These might include:
– Providing safe alternatives for oral stimulation, like sugar-free lollipops or chewing gum
– Ensuring she’s getting proper nutrition
– Managing stress and anxiety through calming activities or environments
– Considering medication adjustments if necessary
Remember, this behavior isn’t intentional. Your grandmother needs understanding and patience as you work with her healthcare team to address this issue. With proper care and management, it’s often possible to reduce or redirect these behaviors in dementia patients.
