Organ/Type + 病
The noun 病 (bìng) means "illness" or "disease" and is one of the most common words in Chinese for describing medical conditions. It can stand alone or combine with other characters to form specific disease names, such as 心脏病 (heart disease) or 感冒病 (cold/flu). It can also function as a verb meaning "to be ill."
这种病传染性很强,要小心。
Zhè zhǒng bìng chuánrǎnxìng hěn qiáng, yào xiǎoxīn.
This disease is highly contagious; be careful.
他的病已经好了,不用担心。
Tā de bìng yǐjīng hǎo le, bùyòng dānxīn.
His illness has already gotten better; no need to worry.
预防疾病比治病更重要。
Yùfáng jíbìng bǐ zhìbìng gèng zhòngyào.
Preventing disease is more important than treating it.