Here are a few options for a WordPress post_tag description, catering to different styles and levels of detail, all in Traditional Chinese for the title “免疫失調”:

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

> 免疫系統失衡的健康狀況。包括自體免疫疾病、免疫缺陷等。 (Miǎn yì xìtǒng shīhéng de jiànkāng zhuàngkuàng. Bāokuò zìtǐ miǎn yì jíbìng, miǎn yì quēxiàn děng.)
>
> *Translation:* Health conditions where the immune system is imbalanced. Includes autoimmune diseases, immune deficiencies, etc.

**Option 2 (More Detailed):**

> 描述免疫系統功能紊亂或失調的各種症狀，例如免疫力低下、免疫系統攻擊自身組織等。涵蓋自體免疫疾病、過敏反應、免疫缺陷病等範疇。 (Miáoshù miǎn yì xìtǒng gōngnéng wěnluàn huò shītiáo de gèzhǒng zhèngzhuàng, lìrú miǎn yìlì dīxià, miǎn yì xìtǒng gōngjí zìshēn zǔzhī děng. Hángài zìtǐ miǎn yì jíbìng, guòmǐn fǎnyìng, miǎn yì quēxiàn bìng děng fànchóu.)
>
> *Translation:* Describes various symptoms of immune system dysfunction or imbalance, such as low immunity, the immune system attacking its own tissues, etc. Covers autoimmune diseases, allergic reactions, immune deficiency diseases, and other related conditions.

**Option 3 (Broad & Introductory):**

> 關注與辨識免疫系統失調相關的資訊。探討不同類型的免疫失調，分享病症與治療相關的知識與建議。 (Guānzhù yǔ biànshí miǎn yì xìtǒng shītiáo xiāngguān de zīxùn. Tàntǎo bùtóng lèixíng de miǎn yì shītiáo, fēnxiǎng bìngzhèng yǔ zhìliáo xiāngguān de zhīshì yǔ jiànyì.)
>
> *Translation:* Focuses on and identifies information related to immune system disorders. Explores different types of immune disorders and shares knowledge and suggestions related to symptoms and treatment.

**Choosing the Best Option:**

* Consider the audience: Are they medical professionals, or a general audience?
* Consider the overall tone of your blog: Is it clinical, educational, or more conversational?
* Keep it concise: Generally, shorter descriptions are more user-friendly.

I recommend either Option 1 or 3 for a good balance of information and brevity. Make sure to choose the one that best fits your website’s style and purpose. You can customize these further if needed!