Here are a few options for the WordPress post tag description for “發燒原因” (Fāshāo Yuányīn, meaning “Causes of Fever”) in Traditional Chinese, with varying levels of detail and formality:

**Option 1: Concise & General**

* **Description:** 了解發燒的原因，找出病因，更好地照顧您和家人的健康。 (Understand the causes of fever to find out why, and better care for your and your family’s health.)

**Option 2: Slightly More Detailed**

* **Description:** 探索發燒發生的各種可能原因，包括病毒感染、細菌感染、環境因素等。 掌握這些知識，才能及時應對，有效緩解症狀。 (Explore the various possible causes of fever, including viral infections, bacterial infections, environmental factors, etc. Mastery of this knowledge allows you to respond promptly and effectively relieve symptoms.)

**Option 3: Emphasizing a Helpful Tone**

* **Description:** 對發燒感到困惑？ 在這裡，我們將一起探討發燒的可能原因，希望能幫助您更好地了解您的身體狀況， 並在需要時尋求適當的醫療建議。 (Confused about fever? Here, we’ll explore the possible causes of fever together, hoping to help you better understand your body and seek appropriate medical advice when needed.)

**Option 4: Focus on Resources**

* **Description:** 關於發燒原因的資訊，包含常見病因、診斷方法和應對策略。 了解關鍵知識，協助您做出明智的健康決策。 (Information on the causes of fever, including common causes, diagnostic methods, and coping strategies. Understanding key knowledge to help you make informed health decisions.)

**Key Considerations When Choosing:**

* **Target Audience:** Who are you writing for? A general audience, medical professionals, or a specific demographic? This influences the language and level of detail.
* **Content of the Post:** Does the associated post focus on broad causes, specific illnesses, or prevention? The description should align with the content.
* **SEO:** Consider keywords that someone might search for when looking for this information. You can subtly incorporate terms like “發燒,” “感冒,” “流感,” “感染,” etc.
* **WordPress Theme/Plugin:** Some themes/plugins may show tag descriptions in different ways. Make sure the description is concise enough to fit within the available space.

I recommend choosing the option that best reflects the overall tone and content of your related blog posts. Option 2 or 4 are generally good choices for providing informative context to the reader.