Psoriasis Nail or Fungal Nail? How to Tell the Difference

Nail changes such as thickening, discoloration, or lifting from the nail bed can be alarming. But are you dealing with nail psoriasis or a fungal nail infection (nail mycosis / onychomycosis)?

Although they may look similar, they have completely different causes — and require different treatments. Understanding the difference is essential for choosing the right solution.

What Is Nail Psoriasis?

Nail psoriasis is a chronic autoimmune condition that affects the nail matrix (where the nail grows) or the nail bed. It is linked to psoriasis of the skin and sometimes to psoriatic arthritis.

Nail psoriasis is not contagious.

Common Symptoms of Nail Psoriasis

• Small dents or pits in the nail (nail pitting)

• Yellow-orange “oil drop” discoloration

• Nail lifting from the nail bed (onycholysis)

• Redness under the nail

• Multiple nails affected

• Often combined with skin psoriasis

Because nails grow slowly, improvement can take several months with proper treatment.

What Is Nail Mycosis (Fungal Nail Infection)?

Nail mycosis, also called onychomycosis, is a fungal infection of the nail. It commonly affects toenails and thrives in warm, moist environments such as tight shoes, gyms, and swimming pools.

Fungal nails can be contagious.

Common Symptoms of Nail Mycosis

• Thickened nail

• Yellow, white, or brown discoloration

• Brittle or crumbly nail texture

• Debris under the nail

• Usually starts in one toenail (often the big toe)

• Gradually worsens without treatment

Unlike nail psoriasis, fungal infections spread slowly and can affect other nails if left untreated.

Psoriasis Nail vs. Fungal Nail: Key Differences

If you are unsure, a professional diagnosis or laboratory test can confirm whether fungus is present.

Why Proper Diagnosis Is Important

Treating the wrong condition can delay recovery:

• Antifungal products will not treat nail psoriasis.

• Anti-inflammatory psoriasis treatments will not eliminate fungal infection.

In some cases, both conditions may occur together — making accurate diagnosis even more important.

Treatment Support for Fungal Nails

When dealing with nail mycosis, consistent care is essential. Because toenails grow slowly, visible improvement requires patience and regular application.

Nail Mycosis by Imperial Feet is designed to support the treatment of fungal nails by improving the nail condition and targeting the environment in which fungi thrive. With consistent use, it helps promote healthier-looking nail growth over time.

For best results:

• Apply consistently as directed

• Keep nails trimmed and clean

• Maintain good foot hygiene

• Avoid tight, moist footwear

Conclusion: Identifying the Right Nail Condition Matters

Nail psoriasis and nail mycosis may look similar, but they require very different approaches. Correct identification is the first step toward effective treatment.

If you suspect a fungal nail infection, early and consistent care — such as with Nail Mycosis by Imperial Feet — can help support healthier nail growth and improved nail appearance over time.

When in doubt, consult a healthcare professional for an accurate diagnosis.