I have a such problem... My site has disappeared from Google index about two weeks ago... First of all I thought that it was banned but its PR ok and it doesn`t seem banned... Its PR is still 2 but there are no pages in Google index.. My Google Webmaster Tools account shows this index status: No pages from your site are currently included in Google's index. Indexing can take time. You may find it helpful to review our information for webmasters and webmaster guidelines. I think it means that site was not banned but why it doesn`t appears in Google? Who would tell me what happened with site?
If it is not indexed at all I think it is banned. What is the URL ? Did you get a message in the Google Webmaster Tool ?
That message doesn't mean your site isn't banned. Is it an affiliate site? Is the content unique? Is it drug related?
I think your website probably is banned. Google is quite picky about what sites they index. I assume you're talking about your penis pills site. That is a very shady niche and they may be even more strict for niches where there are so many spam sites.
Yes you are right... My site related to men`s health products but whether it`s the main reason for disappearing from Google index?
Probably it is the only reason. I lot has to do with "presentation". I site actually targeting "men's health" will be fine, but sites that sell "Viagra" and the like, usually get banned...it's a spam topic.
Go to your webmaster central and read your messages. If Google finds a content issue with your site, or reason it shouldn't be indexed then they will tell you why.
Join the club my friend. I recently had 2 websites banned from google because they were BANS sites. I had 10+ pages of original content on it, but I guess it wasn't enough. One of the sites was making me some decent money. That's ok, I quit using BANS months ago and figured that it would be only a matter of time till these sites disappear. It's true that google hates BANS. If you're going to use BANS, make sure you have 20-30-50 pages of content.