The signs and symptoms of exposure to are divided into three stages:
During the first stage, one of the first signs of an infection with this mold are swollen and irritated eyes. The eyes will feel itchy, watery and burning, and as if the eyes have sand inside of them. The person will constantly sneeze and have a low grade headache that feels like a dull throbbing pain. There might be skin involvement with the skin feeling itchy, red and irritated.
During the second stage of mold exposure, the person can experience a variety of symptoms that range from mild to severe. The person can have a constant headache, hair loss, skin rash or sores on the skin that take a long time to heal. Other symptoms of black mold include nose bleeds, loss of appetite and weight loss. The increase in other infections become numerous during this time. Infections can be diagnosed in the sinuses and the lungs. The risk of asthma and difficulty breathing can also be apparent. The lymph nodes in the neck and groin become swollen and the person can develop short term memory loss. The intestines may not function correctly and the person can have diarrhea and vomiting. The severity of the second stage increases as the nervous system becomes involved.
During the third stage, the nervous system involvement can lead to brain damage, long term memory loss, tumors and hemorrhaging in the lungs. For some people, prolonged exposure to this type of mold can end in death.