Nail fungus is extremely common, especially in toenails, and it often starts with subtle discoloration that gets worse over time. Noticing early signs of nail fungus can help you treat the infection more easily and prevent long-term nail damage.
At Laser Nail Therapy, we’ve helped thousands of patients find treatment for their nail problems and provide the best results. Here we will discuss the most common signs of nail fungus, and what they mean for your nail health.
What Is Nail Fungus?
Nail fungus, medically called onychomycosis, occurs when microscopic fungi infect the nail plate and the nail bed under the nail. Fungus thrives in warm, moist environments, such as sweaty shoes, public showers, and locker rooms.
Once inside the nail, the infection slowly breaks down the nail structure, causing noticeable symptoms that worsen if left untreated.
Most Common Signs of Nail Fungus
If you notice any of the symptoms below, you may be developing a toenail fungus infection. The earlier you address this problem, the easier it is to prevent the fungus from spreading to multiple toes or friends and family.
1. Nail Discoloration
The nail may turn yellow, white, brown, or even develop dark spots. Discoloration often begins at the top of the nail and spreads toward the cuticle.
2. Thick Nails
Thick nails are hard to trim and may feel heavy or uncomfortable inside shoes.
3. Brittle or Crumbly Texture
As the fungus weakens the nail structure, nails may start cracking, splitting, or crumbling around the edges.
4. Nail Shape Changes
Fungus can distort the shape of the nails, causing irregular ridges, uneven surfaces, or warped nail plates.
5. Nail Lifting from the Nail Bed(Onycholysis)
When fungus spreads under the nail, it can cause the nail to detach from the nail bed. This creates gaps where debris builds up.
6. Debris Under the Nail
You may notice chalky, powdery, or soft debris accumulating under the infected nails. This buildup is often a mixture of fungal material and keratin.
7. Cheesy Odor
Some fungal infections produce a cheesy, unpleasant smell, especially when moisture gets trapped under the nails.
8. Spread of the infection to Other Nails
While trauma usually affects just one nail, fungal infections often spread to neighboring nails over time.
9. Discomfort or Pressure
Thickened or warped nails can cause pain when wearing closed-toe shoes or walking for long periods of time.
Why Early Detection Matters
Many people ignore nail fungus signs early on because most of the early symptoms don’t cause a lot of discomfort. But nail fungus rarely goes away by itself and can worsen significantly when left untreated.
Early detection matters because:
- The infection spreads slowly but steadily
- Untreated fungus can damage the nail matrix permanently
- The infection will spread, and multiple nails may become affected
- Thickened nails become harder to treat and maintain clean
- You can prevent the fungus from spreading to family members
When It Might Not Be Nail Fungus
Not every nail problem is caused by fungus. Some conditions can mimic the signs of nail fungus, such as:
- Nail trauma
- Psoriasis or eczema
- Contact dermatitis
- Aging-related nail changes
- Repeated pressure from shoes that may be too small
If you’re unsure whether your symptoms are fungal, a professional evaluation can help determine the cause and the best treatment options for you.
What to Do If You Suspect Nail Fungus
If you notice nail fungus symptoms, take quick action to prevent complications. Try these helpful tips:
- Keep nails short and clean
- Dry your feet thoroughly after bathing
- Always wear breathable socks and shoes
- Disinfect nail tools regularly
- Avoid walking barefoot in public spaces such as locker rooms, spas, and public pools
- Wash, spray with antifungal sprays, or replace old shoes that may harbor fungus
Why Laser Treatment Works Best
Laser toenail fungus treatment is one of the most effective ways to address nail fungus infections because it reaches the fungus where it lives, which is under the nails and in the nail bed.
At Laser Nail Therapy, our FDA-cleared PinPointe laser technology:
- Penetrates the nails to the nail bed, where the fungus harbors
- Targets and kills all fungus at its source
- Leaves surrounding skin unharmed
- Requires no medications or downtime
- Encourages clear and healthy nail regrowth
Most patients feel only mild warmth during treatment and can return to normal activities immediately.
When to See a Specialist
You should schedule a professional evaluation if:
- Nails show discussed fungal infection symptoms
- Nails become thick and/or painful
- You notice nail lifting
- You notice debris under nails
- You notice a cheesy odor
- You have diabetes or circulation concerns
- Home remedies have failed
Prompt treatment helps prevent severe nail damage and improves your chances of full recovery.
The Bottom Line
Recognizing early nail fungus symptoms is the best way to prevent worsening infection and long-term nail damage. Whether you’ve noticed discoloration, thickening, odor, or other nail changes, our team at Laser Nail Therapy can help you get the right diagnosis and provide you with the best treatment options.
Ready to Restore Clear, Healthy Nails?
Laser treatment offers a safe and effective solution without the need for taking pills with harmful side effects. Our specialists at Laser Nail Therapy are here to help you take the first step toward taking your confidence back.