An epidemiologist from King’s College London has seen an increase in the numbers of patients with COVID19 who have been dealing with a mouth symptom such as an oral ulcer. However, the World Health Organization (WHO) has yet not confirmed it as one of the symptoms of COVID19. Professor Tim Spector has claimed that he has seen a rise in COVID19 patients with an oral ulcer. He has said that at least one out of five patients with COVID19 disease has been identified with this symptom more recently but the Public Health England (PHE) has not listed it as one of the symptoms of COVID19 on its official website. As of now, the expert has termed it a COVID tongue. Looking at an increasing number of COVID tongue cases, Tim has advised patients to stay at home, if they experience headache, fatigue, and fever. The US Center for Disease Control and Prevention (CDC) as well has not listed this symptom as one of the signs of COVID19 on its official website. US experts as well have not mentioned any oral symptoms so far.
Scientists have said that it is not the first time COVID19 disease has been linked to mouth and tongue symptoms. A past study from the Nature journal Evidence-Based Dentistry has found three such patients with oral ulceration and blistering of the mouth who has been diagnosed with COVID19. Another research, which has been published in JAMA Dermatology, has observed 21 patients with COVID19 in Spain. The study has shown that these patients have been identified with skin rash. Nearly six of them have been found to have an oral rash as well. As per a report, many patients who have recovered from COVID19 have been complaining about oral issues such as teeth falling out, sensitive gums, grey teeth, and cracked teeth. Many studies have claimed that the mouth might be a susceptible region to the SARS-CoV-2 virus due to the high load of the ACE2 receptor in oral tissue. The ACE2 receptor helps the virus to infect the human body.
The World Health Organization (WHO) has advised that fever, dry cough, and tiredness are the most common symptoms of COVID19. Other symptoms of coronavirus include loss of taste and smell, aches and pain, sore throat, nasal congestion, red eyes, diarrhea, or a skin rash. Professor Tim Spector has shared an image of one of his patients who has been suffering from COVID tongue symptoms on social media. Many health experts have said they have come across the same set of tongue markings, which are similar to the image shared by the expert. However, they have diagnosed it as a geographic tongue. They have said that geographic tongue is a benign oral inflammatory condition, which forms a map-like pattern on the tongue. This condition takes place due to the loss of papillae on the surface of the tongue. Papillae are tiny hair-like projections, which are found on the exterior of the tongue. People who suffer from this issue have red and smooth patches of different sizes and shapes on the surface of the tongue.