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suffer from anaemia
suffer from 后接病名，表示长期患有某种疾病。
She has suffered from anaemia since childhood.
她从小就患有贫血。
贫血
anaemias — plural of anaemia
先理解核心含义，再看它在真实句子里的用法。
贫血
a deficiency of red blood cells
She has suffered from anaemia since childhood.
她从小就患有贫血。
贫血；贫血症
n a lack of vitality；n a deficiency of red blood cells
After months of feeling tired all the time, the doctor told me I had mild anaemia.
连续几个月一直感到疲倦后，医生告诉我我患有轻度贫血。
Eating iron-rich foods can help people prevent anaemia.
吃富含铁的食物可以帮助人们预防贫血。
She was diagnosed with anaemia and was advised to take iron supplements daily.
她被诊断出贫血，并被建议每天服用铁补充剂。
suffer from 后接病名，表示长期患有某种疾病。
She has suffered from anaemia since childhood.
她从小就患有贫血。
diagnose 常用被动结构 be diagnosed with...，with 后接疾病名称。
He was diagnosed with anaemia after a blood test.
验血后，他被诊断患有贫血。
名词后接 caused by... 表示“由……引起的”，作定语修饰该名词。
Anaemia caused by iron deficiency is common.
缺铁引起的贫血很常见。
Not this
She is anaemia.
Use this
She has anaemia.
anaemia 是名词，不能放在 be 动词后当形容词表语；表示“患贫血”要用 have/has + anaemia。
Not this
He suffers anaemia.
Use this
He suffers from anaemia.
suffer 后接疾病名称时要用介词 from，即 suffer from + 疾病，表示“患有……”，不能直接说 suffer anaemia。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
缺铁性贫血
Iron-deficiency anaemia can make you feel tired and weak.
缺铁性贫血会让人感到疲倦和虚弱。
镰状细胞贫血
People with sickle cell anaemia often need regular medical care.
镰状细胞贫血患者通常需要定期医疗护理。
恶性贫血
Pernicious anaemia is treated with vitamin B12 injections.
恶性贫血通过注射维生素B12来治疗。
严重贫血
Severe anaemia may require a blood transfusion.
严重贫血可能需要输血。
患贫血症
Many pregnant women suffer from anaemia.
许多孕妇患有贫血症。
Use anaemias naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记 anaemia：中间读起来像英文‘knee’(膝盖)，贫血的人膝盖发软、脸色苍白。
语域：formal 常见场景：medical reports、health articles、clinical discussions anaemia 是较正式的英式医学术语（美式常写作 anemia），通常用于医疗记录、健康科普或学术语境；日常口语中较少直接使用。
泛指贫血症状时通常不可数；指不同类型时可用复数 anaemias。
Dictionary facts from ECDICT, WIKTIONARY.