Here are a few options for a WordPress post_tag description for “寵物疾病” in Traditional Chinese, ranging in detail:

**Option 1 (Concise):**

> 關於寵物疾病的資訊，包括症狀、治療方法及預防措施。 (Information about pet diseases, including symptoms, treatments, and preventative measures.)

**Option 2 (Slightly more detailed):**

> 收集了貓狗等寵物可能罹患的疾病資訊，提供疾病的介紹、診斷、治療方法，以及如何保護您的寵物遠離疾病。 (Collection of information on possible diseases in pets like cats and dogs, providing introductions to diseases, diagnoses, treatments, and how to protect your pet from illness.)

**Option 3 (Focus on practical application):**

> 這裡匯集了關於寵物疾病的文章和資源，幫助您了解常見疾病，識別早期徵兆，並為您的毛孩提供最佳照護。 包含疾病科普、護理建議及飼主經驗分享。(This tag gathers articles and resources on pet diseases, helping you understand common illnesses, identify early signs, and provide the best care for your furry friend. Includes disease education, care advice, and owner experience sharing.)

**Option 4 (Emphasizing prevention):**

> 關注寵物健康，全面探討各種寵物疾病。 包括疾病成因、症狀表現、治療方法，以及最重要的預防措施，讓您的寵物保持健康活力。(Focus on pet health, comprehensively discussing various pet diseases. Includes disease causes, symptom presentation, treatment methods, and, most importantly, preventative measures, to keep your pet healthy and energetic.)

**Which one should you choose?**

* **Choose Option 1** if space is very limited, and brevity is key.
* **Choose Option 2** if you want a good balance of detail and conciseness.
* **Choose Option 3** if you want to highlight resources and a practical approach for owners.
* **Choose Option 4** if you want to emphasize preventive measures and overall pet well-being.

Consider which aspect of your blog post resonates the most with your content, as well as the limitations set by your WordPress theme. Good luck!