List of human microbiota

This article lists some of the species recognized as belonging to the human microbiome. The "reference" 70 kg human body is estimated to have around 39 trillion bacterias with their total mass of about 0.2 kg. These can be separated into about 10,000 microbial species. about 180 of the most studied is listed below here. However all of these can broadly be put into 3 categories:

• Spheres or ball-shaped (cocci bacteria).
• Rod-shaped bacteria (bacilli).
• Spirals or helixes (spirochetes).