Ray of hope for the Parkinson’s community? Latest study claims dogs can detect the disease early with high accuracy

A new study has discovered that trained dogs were surprisingly accurate in detecting Parkinson’s disease. This development has come as a ray of hope for the Parkinson’s community, as there are currently no definitive early diagnostic tests for the disease.

The latest findings have given hope to scientists, as this data will help them identify the biological markers that dogs are able to detect, according to Dogster.com. Identifying the earliest changes in the body could result in improved tests, allowing patients to get timely care, as the study suggests that dogs can detect symptoms potentially years before diagnosis.

What is Parkinson’s Disease

Parkinson’s is a neurological disorder that leads to symptoms such as stiffness, tremors, trouble with balance, and slow movement. It is progressive and worsens as time goes on. While there is no cure at present, medications and sometimes surgery can help manage symptoms.

There is still no conclusive test for diagnosing Parkinson’s, so finding the biological markers that dogs can sense may be valuable. Symptoms can first appear up to 20 years before they are persistent enough for a clear diagnosis. An early detection test could give patients and doctors a significant advantage in managing the disease.

How can dogs help in detecting Parkinson’s

The research published on July 15, 2025, in The Journal of Parkinson’s Disease claimed that dogs can detect the disease. But the question is, how is this possible?

According to Dogster.com, the study features a double-blind study involving trained dogs. Seborrheic dermatitis, a skin condition caused by glands producing too much sebum, is one of the early symptoms of Parkinson’s, often appearing before motor issues. Sebum has a unique smell, and researchers thought dogs might be trained to detect the extra sebum in skin samples.

In the study, professional trainers taught a group of dogs to detect Parkinson’s from skin samples. Ten dogs started the training, but just two finished the challenging process. After completing their training, the dogs were presented with a series of skin samples, one of which might have had Parkinson’s. The study was double-blind, making sure the dogs weren’t influenced by their trainers or the researchers.

In the end, the dogs were 98% accurate at detecting Parkinson’s disease from the skin samples. Their sensitivity to the samples was also high, between 70% and 80%. While this is only an initial step toward creating an early test for Parkinson’s, the findings were promising.

Dogs have demonstrated the ability to sense several diseases, including cancer. Cancerous tumors release volatile organic compounds that some dogs’ keen sense of smell can pick up. They may also be able to detect conditions like diabetes, malaria, and COVID-19.