Mold is one of the most common non-living organisms visible to the naked eye. All around the world it works to help decompose and recycle old materials. It breaks down trees, leaves, and leftover food products in landfills. Without mold the world would quickly become a giant landfill. Although it is essential, no one wants mold in their home. It is a costly nuisance and potential health risk. Mold should always be promptly removed, but it does come in many different colors. There are countless strains and species of mold with some being more common than others. If you’re curious about what type of mold is growing in your home, read on below:

Green Mold: The Most Common

Seeing that a mold is green doesn’t actually say much. There are thousands of species of mold alone that are green. Green mold is the most common form of mold and can be found on nearly any surface. It grows indoors, outdoors, on wood, in walls and practically anywhere else you can think of. Fortunately, green mold does not pose significant health or property risks like some of its colored counterparts.

White Mold

Like green mold, white mold doesn’t tell much. There are many species of white mold. It gets its color from growing next to or in salt deposits that are left behind by water. White mold is generally found on masonry and in dark, wet places.

Pink Mold

Pink mold is not really mold at all, but is a form of bacteria commonly found in bathrooms. It comes from the family Serratia marcescens. This grows frequently in sinks and tubs and feeds on soap residues. Removing it isn’t generally difficult but must be done often as there is no way to prevent its growth.

Yellow Mold

Yellow mold comes in a variety of colors from pale yellow to bright fluorescent yellow. Most often it is a form of Aspergillus mold and are very common. People with preexisting respiratory conditions like COPD or asthma may experience worsened reactions from breathing in yellow mold spores. Yellow mold can come in many textures, but most often it is “normal” fuzzy mold or shiny, slimy mold.


Greenish blue mold belongs to the Penicillin family. Yes, the same Penicillin that you get from the doctor when you’re sick in the form of antibiotics. Unfortunately, when it is in the form of mold and not medicine, it can cause problems. This mold loves to grow on food, especially bread, and on walls. If people are exposed to it for long enough, they can develop an allergy to it. For people with a penicillin allergy, they will be at risk for diseases treated by antibiotics at a higher rate and will experience symptoms longer.

Greenish-Black: The Dangerous One

This color of mold is one that you have surely heard at some point, commonly referred to as “black mold”. It is important to note that there are many forms of black mold and not all are dangerous. However, it is better to be safe than sorry. The dangerous form of black mold is from the Stachbotrys genus. It can cause severe medical problems including memory loss, bleeding, and death. Care should be taken if Stachbotrys mold is suspected to avoid inhalation of its spores.

What Should I Do About The Mold In My Home?

Regardless of what color the mold you find is, you want to get rid of it as soon as possible. Mold grows and spread extremely fast and can lead to costly problems if left to do so. Calling in a professional to find and remove all of the mold from your home is the best and safest option.