Traveler's Diarrhea: This is the most common diagnosis for individuals experiencing diarrhea after traveling to Egypt. It is often caused by bacterial pathogens such as Escherichia coli (E. coli), which can be contracted through contaminated food or water.

Giardiasis: Caused by the Giardia lamblia parasite, this infection can occur through contaminated water sources, which might be encountered during travel.
Salmonellosis: Salmonella infections can cause diarrhea and are often associated with consuming contaminated food or water.
Shigellosis: Shigella bacteria can cause severe diarrhea and are commonly spread through contaminated food, water, or person-to-person contact.

Cholera: Although less common, cholera is a potentially life-threatening condition caused by Vibrio cholerae, usually through contaminated food or water. It requires immediate medical attention.
Amoebic Dysentery: Caused by Entamoeba histolytica, this condition can lead to severe diarrhea and is potentially life-threatening if not treated properly.
Typhoid Fever: Caused by Salmonella Typhi, typhoid fever can present with diarrhea among other symptoms and is critical to diagnose and treat to prevent complications.

Cyclosporiasis: Caused by the Cyclospora cayetanensis parasite, this infection can cause prolonged diarrhea and is usually associated with consuming contaminated food or water.
Cryptosporidiosis: This parasitic infection can cause diarrhea and is more common in individuals with weakened immune systems, but can also affect healthy travelers who consume contaminated water or food.
Viral Gastroenteritis: While common in general populations, specific viral causes of gastroenteritis might be less commonly considered in the context of travel to Egypt but should still be part of the differential diagnosis, especially if other common causes are ruled out.