The symptoms of black fungus disease (mucormycosis) can vary depending on which part of the body the infection develops. Common symptoms of the disease may include: Fever, cough, chest pain, shortness of breath, swelling or edema in part of the face, headache, feeling of fullness in the sinuses, black lesions on the bridge of the nose or inside the mouth, abdominal pain, nausea and vomiting, gastrointestinal bleeding, blood in stool, and diarrhea. In cases with skin involvement, the affected skin area develops a fluid-filled, red, and edematous appearance. Over time, these lesions may turn black, becoming warmer and more painful. Black fungus infection can also spread through the bloodstream to other parts of the body. This condition is called disseminated mucormycosis and can affect vital organs such as the spleen and heart. In more severe cases, neurological involvement can lead to life-threatening conditions such as altered consciousness or coma.