Corona virus disease spreads rapidly throughout the world and created public health emergency. This RNA virus shows different types of stains among which delta (B.1.617.2) stain is more dangerous due to its mutation although omicron (B.1.1.351) spreads more rapidly than other variants. Covid-19 manifest different oral lesions like ulcers, erosion, necrotising periodontal disease, red and white plaque, petechiae, herpetiform lesions, non-specific lesions, HSV-1, acute parotitis etc. This virus also leads to post complications like Mucormycosis, musculoskeletal problems, mental health problems. As this virus spreads through oral and nasal routes so it is important to identify oral lesions as early as possible, so that dentist and paramedical staffs take proper preventive measures.