What kind of bugs and bacteria are under fingernails?

Under fingernails, various types of bacteria and fungi can thrive, including Staphylococcus, Streptococcus, and various strains of fungi like Candida. These microorganisms can originate from the skin, dirt, and surfaces we come into contact with daily. Additionally, the warm, moist environment under the nails provides an ideal breeding ground for these microbes. Regular handwashing and nail hygiene can help minimize their presence.