1
suffer from [disease]
suffer from 可接疾病名称；cystitis 通常为不可数名词，前面不加 a。
She suffered from cystitis and had to see a doctor.
她患了膀胱炎，不得不去看医生。
膀胱炎
先理解核心含义，再看它在真实句子里的用法。
膀胱炎
inflammation of the urinary bladder and ureters
She suffered from cystitis and had to see a doctor.
她患了膀胱炎，不得不去看医生。
医学术语
膀胱的炎症
Inflammation of the urinary bladder.
膀胱和输尿管的炎症
inflammation of the urinary bladder and ureters
The doctor said my frequent need to urinate was caused by cystitis.
医生说我频繁需要排尿是由膀胱炎引起的。
She drank a lot of water to ease the discomfort of cystitis.
她喝了很多水以缓解膀胱炎带来的不适。
If cystitis is treated early, it usually clears up within a few days.
如果膀胱炎及早治疗，通常几天内就会痊愈。
suffer from 可接疾病名称；cystitis 通常为不可数名词，前面不加 a。
She suffered from cystitis and had to see a doctor.
她患了膀胱炎，不得不去看医生。
develop 表示“患上、出现（疾病）”，较 get 更正式。
He developed cystitis after the surgery.
他手术后患上了膀胱炎。
表示某个病例时用 a case of cystitis，而不是 a cystitis。
The clinic reported a case of cystitis this week.
这家诊所这周报告了一例膀胱炎。
Not this
I have a cystitis.
Use this
I have cystitis.
cystitis 是不可数名词，表示患这种病时前面不能加不定冠词 a，直接说 have cystitis。
Not this
I am having cystitis.
Use this
I have cystitis.
have 表示患某病时是状态动词，不能用进行时 am having；要用一般现在时 have。
Not this
I have cystitis for two days.
Use this
I have had cystitis for two days.
for two days 表示持续到现在的一段时间，句子要用现在完成时 have had，不能用一般现在时 have。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
急性膀胱炎
The doctor diagnosed her with acute cystitis.
医生诊断她患有急性膀胱炎。
慢性膀胱炎
Chronic cystitis can cause ongoing discomfort.
慢性膀胱炎会引起持续不适。
间质性膀胱炎
Interstitial cystitis is a painful bladder condition.
间质性膀胱炎是一种疼痛的膀胱疾病。
复发性膀胱炎
Recurrent cystitis may require long-term treatment.
复发性膀胱炎可能需要长期治疗。
治疗膀胱炎
Antibiotics are often used to treat cystitis.
抗生素常用于治疗膀胱炎。
膀胱炎症状
Cystitis symptoms include frequent urination.
膀胱炎症状包括尿频。
Use cystitis naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 cyst（囊）和 itis（炎）联想成“囊发炎”，即膀胱炎。
语域：formal 常见场景：clinical consultations、medical records cystitis 是医学术语，多用于正式场合，如病历、诊断或医患沟通；日常口语较少使用。
复数形式为 cystitides。
Dictionary facts from ECDICT, WIKTIONARY.