Female genitalia manga and hentai often share explicit content. But hentai usually has more exaggerated and fantasy elements.
The main thing is that hentai manga focuses on adult themes and sexual acts. Regular manga can be about adventure, fantasy, comedy, and many other things without that kind of focus. Also, hentai manga is often restricted to certain audiences due to its content, while regular manga has a broader appeal.
Manga hentai often contains explicit adult content, while regular manga can cover various genres and themes without such content. That's a major difference.
Manga hentai often contains explicit sexual content, while regular manga can cover a wide range of genres and themes without such adult-oriented elements.
Well, hentai manga is known for its sexual and often extreme content. Chearing manga, on the other hand, is likely to have more humorous or heartwarming elements. Also, the art style and storylines can vary greatly between the two.