If you notice changes in the color of your nails, it can be alarming. What’s going on under there? Is it serious? Should you see a doctor?
One common nail discoloration is a green spot. When people see a green spot on a nail, they naturally start wondering about mold and fungal infections, and how they differ.
This article will help you understand the differences between green spot nail mold vs fungus, including what causes these conditions, what the symptoms are, and when you should consult with a healthcare professional. For more information, read about how to identify, treat, and prevent green nail fungus infections.
Nail mold vs. fungus: What’s the difference?
If you notice something different about your nails, it may be hard to tell whether you have an infection caused by mold or fungus.
Fungal nail infections (onychomycosis)
Onychomycosis is a common condition caused by different kinds of fungus.
Dermatophytes are the most common cause. They’re responsible for 90 percent of toenail fungal infections and 50 percent of fingernail fungal infections.
Other types of fungi, such as yeasts and molds that aren’t dermatophytes, can also cause nail infections.
Green spots and mold
A green spot under the nail is often caused by pseudomonas bacteria, not mold.
While molds can cause nail infections, a bright green spot is more likely to be caused by bacteria.
What causes nail discoloration?
Discolored nails can be a sign of infection. Here are a few common culprits.
Dermatophytes
Dermatophytes are microscopic, parasitic fungi. They thrive in damp environments, and they love to feed on keratin, which is the protein that makes up your nails and skin.
Dermatophyte infections can cause your nails to thicken, become brittle, and turn yellow.
Molds
Nondermatophyte molds, such as Aspergillus, Scopulariopsis, and Fusarium, can also infect nails.
In rare cases, a mold-related infection can cause fungal melanonychia, which results in nail discoloration. If you have darker skin, it’s important to get an early diagnosis, as melanonychia can sometimes be mistaken for subungual melanoma, a type of skin cancer that occurs under the nail.
Yeast
Yeasts, such as Candida, are another potential source of nail infections, especially if you have a weakened immune system.
Yeast infections can cause your nails to thicken, become discolored, and separate from the nail bed.
Distinguishing features and when to seek medical attention
Let’s break down the key differences between a green spot and a fungal infection, and what to do about it:
- Color and appearance: Green spots are probably bacterial. Fungal infections often cause yellowing, thickening, and brittleness of the nail.
- Risk factors: Exposure to moisture and trauma to the nail can increase your risk of both green spots and fungal infections. The same goes for underlying health conditions.
If you notice any discoloration of your nails, especially if it’s accompanied by pain, swelling, or separation of the nail from the nail bed, you should see a doctor. Early diagnosis is important, because infections can spread to other nails and even to other people. Such symptoms may be indicative of conditions like 20-nail dystrophy.
Frequently Asked Questions
How can you tell mold from fungus on nails?
Distinguishing between mold and fungus on nails can be tricky without a lab test. However, mold often presents as greenish or blackish discoloration, while fungal infections tend to be yellowish, thickened, and may cause the nail to crumble. Ultimately, a professional diagnosis is always best.
How do I get rid of nail fungus ASAP?
Getting rid of nail fungus quickly is a common desire, but complete eradication typically takes time. Over-the-counter treatments are available, but prescription oral or topical medications from a doctor often provide the most effective and fastest results. Certain acids, such as hypochlorous acid, may have antifungal properties. Patience and consistency are key.
Will nail salons do nails with fungus?
Reputable nail salons should not perform services on nails with a suspected fungal infection. Doing so risks spreading the infection to other clients and tools. Ethical salons will recommend seeking professional medical treatment first.
How do you tell the difference between nail fungus and nail trauma?
Nail trauma, such as a bruise under the nail, usually appears after an injury and might cause pain. Fungal infections develop more gradually, often without initial pain, and cause discoloration, thickening, and potentially crumbling of the nail. Observing the timeline and symptoms helps differentiate the two, but if you’re unsure, see a doctor.
What does staph look like on nails?
Staph infections around the nails can cause redness, swelling, pain, and pus-filled blisters or boils. The skin around the nail might feel warm to the touch. Unlike fungal infections which primarily affect the nail itself, staph infections mainly target the surrounding tissue. Seek medical attention if you suspect a staph infection.
Wrapping Up
Green spots on your nails can be concerning, but knowing the difference between a bacterial infection and a fungal infection is important so you can treat it correctly.
If you notice green spots on your nails, it’s a good idea to see a doctor and get an accurate diagnosis. Prompt treatment can help you keep your nails healthy and avoid complications.