"Do you need any help?"

[WillowsofXihu]

This is incorrect grammar; 帮忙 must be preceded by 我, otherwise 帮助 should be used.

[Owlspotting]

I think it's OK without 我--at least for Mandarin as spoken in Taiwan.

[Mr.rM]

No, 您需要帮忙吗 can have two meanings:

1. Do you need helping/assistance (from others)?
2. Do you need to help/assist (others)?

帮忙 can be used as an intransitive verb “to help” or a participle/gerund “helping” but cannot be used as a real noun like 帮助. Also 帮忙 is mostly used for “aid”, not directly referred as “rescue, salvation”. 帮助 is very general that it can mean any kind of help.

[Randy703281]

Somehow yea....

[Lomochibi]

I've never heard of this rule, can a native confirm this? Please? :)

[ThieumL]

I worked 6 months in a hotel in China, everybody says exactly 需要帮忙吗？when asking guests if they need assistance.

[elmanisero777]

why not use 你需要帮助吗？

[Yammy4488]

Yes what's the difference between 帮助 and 帮忙?

[RobMac]

Why not "你需要什么帮助吗？"