Why does my dog's tongue turn black? Analyze the causes and countermeasures
Recently, the topic of pet health continues to be popular on social media, especially the phenomenon of "black tongue in dogs", which has caused many owners to worry. This article will combine the hot discussions and professional veterinary advice on the Internet in the past 10 days to provide you with a detailed analysis of the possible causes and countermeasures of this phenomenon.
1. Common causes of black tongue in dogs

| Reason type | Specific instructions | probability of occurrence |
|---|---|---|
| normal physiological phenomena | Some dog breeds (such as Chow Chow, Shar-Pei) are born with black or blue-black tongues | High (specific dog breeds) |
| Pigmentation | Normal pigmentation that occurs with age | Middle (common in older dogs) |
| Trauma or bruises | Local tissue damage caused by bites and burns | low |
| signs of disease | Symptoms of systemic diseases such as heart disease, hypoxia, and poisoning | Low (needs to be combined with other symptoms) |
2. Accompanying symptoms that require vigilance
If your dog has the following symptoms in addition to a black tongue, it is recommended to seek medical attention immediately:
| Symptoms | May be associated with diseases | Urgency |
|---|---|---|
| difficulty breathing | Abnormal cardiopulmonary function | ★★★★★ |
| sudden loss of appetite | Digestive disorders/poisoning | ★★★★ |
| listless | systemic infection | ★★★★ |
| White gums | anemia or circulatory problems | ★★★ |
3. Self-examination guide for pet owners
1.Observe Timeline: Record the time and speed of tongue color change and whether it continues to worsen
2.Check the mouth: Check for ulcers, foreign bodies or abnormal secretions in a well-lit area
3.behavior monitoring: Pay attention to whether you scratch your face frequently or have difficulty eating.
4.Environmental troubleshooting: Check your home for toxic substances that may be accidentally eaten (such as chocolate, detergents, etc.)
4. Professional diagnosis and treatment suggestions
According to the latest admission data from pet hospitals:
| Check items | Average cost (yuan) | Detection rate |
|---|---|---|
| Basic physical examination | 50-100 | 100% |
| Routine blood tests | 120-200 | 68% |
| X-ray examination | 200-400 | 35% |
| Complete set of biochemistry | 300-600 | 42% |
5. Preventive health measures
1.Regular oral care: Use a pet-specific toothbrush to clean 2-3 times a week
2.Diet management: Avoid feeding foods containing artificial colorings and supplement vitamin B appropriately.
3.environmental safety: Store chemicals out of reach of pets
4.Physical examination plan: Adult dogs should undergo a comprehensive physical examination at least once a year
6. Special reminder from experts
Veterinarian Zhang, director of a pet hospital in Beijing, emphasized: "90% of tongue color changes are normal, but sudden blackening accompanied by loss of appetite may be a sign of internal bleeding. It is recommended that owners take clear oral photos to record the change process, which is very helpful for doctors to diagnose."
This article is compiled based on the recent Weibo #pethealth topic list, Douyin pet doctor popular science video, etc. The data statistics period is from November 1 to 10, 2023. If your dog develops abnormal symptoms, please seek professional veterinary diagnosis.
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