The Symptoms of Exposed Black Mold

Updated March 23, 2017

Black mould, which is otherwise known as toxic mould, is one of the few types of mould that produces toxic fumes that result in black-mold poisoning. Unlike other mould types, which are relatively harmless except in those who are allergic to them, black mould can harm anyone. Symptoms of black-mold exposure prevent further sickness and allow clean-up of the mould.


Headaches are one of the common symptoms of black-mold exposure. While everyone reacts to the toxins differently, headaches are a problem for most -- even those with minor symptoms or who do not show other symptoms can end up with a headache. For those living in the area that has black mould, a constant or recurring headache is a symptom of concern.

Cold or Flu Symptoms

Cold or flu symptoms are a common reaction to black mould, especially in individuals who are susceptible to the toxins and mould spores. An achy feeling along with coughing, sneezing and sometimes fever are a symptom of black mould. While a single cold or flu that goes away within a week is not cause for alarm, recurring cold and flu symptoms or a cold that lasts longer than a week to ten days may signify black mould.

Coughing Up Blood

Hemoptysis, or coughing up blood, is always a concern. In the case of black mould, hemoptysis is a severe symptom of poisoning. Though general coughing is common for many illnesses, there are not many that result in blood or black debris from dried blood.

Memory Loss

Short- or long-term memory loss is considered a severe symptom of black-mold poisoning. When this occurs, it is imperative to get out of the location and be tested for poisoning at a doctor as soon as possible. Waiting longer can result in death due to toxic mould.

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