Foot fungus is a condition in which the body experiences a series of abnormal symptoms in the nervous or cardiac system due to a deficiency of vitamin B1. There are different types of beriberi, which are generally divided into three categories. Typically, the common symptoms in patients with acute cardiac type of foot fungus include a more acute failure of the systemic circulation, a rapid drop in blood pressure, the patient feels upset and agitated, shortness of breath, and an increased heart rate. If left untreated, death can even result from respiratory distress and circulatory failure. Symptoms of wet foot disease are mostly systemic, and patients may have nausea, vomiting and inability to eat and drink, decreased urine, and edema in the body. In addition, patients have significant weakness and fatigue and palpitations, and are more short of breath. Multiple functions or organs throughout the body may show abnormalities and progress to circulatory failure. In dry pediculosis, the neurological symptoms are often neurological, with severe nerve damage, impaired movement of the limbs, verticality of the feet or toes, and strange walking postures that make it impossible to walk normally. In severe cases, there may be an inability to orient, memory loss and constant eye twitching, and may even be comatose. The manifestations of foot fungus vary depending on the type of disease, and may include symptoms such as heartburn, shortness of breath, and a drop in blood pressure, or vomiting and edema, as well as abnormal walking, muscle weakness in the limbs, and coma.