Here are a few options for the WordPress post tag description, catering to different levels of explanation and user understanding:

**Option 1 (Concise & Informative):**

* **Description:** 描述肌腱炎，一种影响肌腱的疼痛性炎症。 包括成因、症状和治疗方法。 (Describes tendinitis, a painful inflammation of the tendons. Includes causes, symptoms, and treatments.)

**Option 2 (More Detailed):**

* **Description:** 關於肌腱炎的資訊，涵蓋了其定義、常见原因（例如过度使用、重复性动作、损伤等等）、各种症状（例如疼痛、肿胀、活动受限）、诊断方法和不同的治疗选择，例如休息、冰敷、止痛药、物理治疗，以及严重情况下的治疗手段。 (Information on tendinitis, covering its definition, common causes (e.g., overuse, repetitive motions, injuries, etc.), various symptoms (e.g., pain, swelling, limited movement), diagnostic methods, and different treatment options like rest, ice, pain relievers, physical therapy, and treatments for severe cases.)

**Option 3 (Focus on User Experience):**

* **Description:** 如果您正在经历肌腱炎的疼痛，这里有关于肌腱炎的全面指南。了解您的症状，寻找缓解方法，并了解如何预防再度复发。 帮助您更好地管理疼痛，恢复健康。 (If you’re experiencing pain from tendinitis, here’s a comprehensive guide to tendinitis. Understand your symptoms and find relief, and learn how to prevent recurrence. Helping you better manage pain and recover your health.)

**Option 4 (Emphasizing Prevention):**

* **Description:** 关于肌腱炎的各个方面，包括症状、成因、治疗以及最重要的预防措施。了解如何保护您的肌腱，避免在未来遭受疼痛。 (Everything about tendinitis, including symptoms, causes, treatments, and most importantly, preventive measures. Learn how to protect your tendons and avoid pain in the future.)

**Why these work:**

* **Clarity:** Clearly identifies the topic (肌腱炎).
* **Relevance:** Addresses key aspects of tendinitis that users are likely to be interested in.
* **SEO-Friendly:** Uses relevant keywords, helping with search engine optimization (SEO).
* **Tailored to Target Audience:** (Traditional Chinese speakers).
* **Succinct:** Uses relatively brief language, avoiding overly long descriptions.

**When choosing:**

* Consider the overall content of your blog.
* Think about the kind of information you’re trying to provide.
* Choose the explanation that best fits your purpose.