
Common Toenail Problems and Their Causes

Toenail problems can indicate underlying health issues, with several distinct conditions affecting the nails. Beau's lines are horizontal indentations that can occur when growth is temporarily disrupted by illness, injury, or stress. Clubbing refers to a rounding of the toenails and fingertips, often associated with lung or heart disease. Green nail syndrome is a bacterial infection caused by Pseudomonas bacteria, leading to a green discoloration of the nail. Koilonychia, also known as spoon nails, causes nails to become thin and concave, potentially linked to iron deficiency anemia. Additionally, median nail dystrophy is a condition where the nails develop vertical grooves or splits, which may be a result of trauma or skin conditions. These toenail problems should not be ignored, as they may be a sign of nutritional deficiencies, infections, or systemic health conditions that require attention. If you have any of these toenail conditions, it is suggested that you consult a podiatrist who can offer effective treatment remedies.
Toe pain can disrupt your daily activities. If you have any concerns, contact one of our podiatrists of The Sun Healthcare & Surgery Group. Our doctors can provide the care you need to keep you pain-free and on your feet.
What Causes Toe Pain?
Most severe toe pain is caused due to a sports injury, trauma from dropping something heavy on the toe, or bumping into something rigid. Other problems can develop over time for various reasons.
Toe pain can be caused by one or more ailments. The most common include:
- Trauma
- Sports injury
- Wearing shoes that are too tight
- Arthritis
- Gout
- Corns and calluses
- Hammertoe
- Bunions
- Blisters
- Ingrown toenails
- Sprains
- Fractures (broken bones)
- Dislocations
When to See a Podiatrist
- Severe pain
- Persistent pain that lasts more than a week
- Signs of infection
- Continued swelling
- Pain that prevents walking
Diagnosis
In many cases the cause of toe pain is obvious, but in others, a podiatrist may want to use more advanced methods to determine the problem. These can range from simple visual inspections and sensation tests to X-rays and MRI scans. Prior medical history, family medical history, and any recent physical traumatic events will all be taken into consideration for a proper diagnosis.
Treatment
Treatments for toe pain and injuries vary and may include shoe inserts, padding, taping, medicines, injections, and in some cases, surgery. If you believe that you have broken a toe, please see a podiatrist as soon as possible.
If you have any questions please feel free to contact our offices located in Antioch, Martinez, and Concord, CA . We offer the newest diagnostic tools and technology to treat your foot and ankle needs.
Toe Pain
Toe pain can originate from corns, calluses, hammertoes, and bunions, as well as ingrown toenails, sprains, fractures, and dislocations. Corns develop as the toe rubs against the inside of a shoe which causes the skin to thicken as a form of protection. A corn is typically cone-shaped and has a small, hardened spot that points inward. When a corn is pressed into the skin, the toe becomes painful. Corns usually form on the top or side of the toe. A callus is also a thickened patch of skin that generally forms on the bottom of the foot. Calluses are the result of friction from the toe rubbing against the inside of a shoe. They may also occur by walking barefoot or having flat feet. A hammertoe is a bump on the knuckle of the second toe that is produced by wearing shoes that are too short for your feet. The bony protrusion rubs against the top of the shoe causing pain and irritation. A bunion is a malformation of the big toe. The base of the big toe pushes away from the smaller toes, forcing the top of the big toe to press toward the other toes. Bunions can be hereditary, or they can result from injury to the toe joint or from wearing high heels with a narrow toe box. The toe becomes inflamed, and a bump may develop at the end of the misplaced bone. Ingrown toenails typically affect the big toe and its surrounding skin. The nail will dig into the skin and become painful. Wearing tight or narrow shoes that compress the big toe causes the nail to grow into the fleshy part of the toe. Cutting toenails incorrectly can also add to the development of an ingrown toenail. A toe sprain originates from a torn or stretched ligament. Strapping the injured toe to the toe next to it for stabilization is common. A broken or fractured toe usually occurs from trauma like dropping a heavy object on it or bumping into something extremely hard and rigid. Osteoporosis, a thinning of the bones, can also bring about toe fractures.
Any of the conditions mentioned can lead to pain and irritation. While some are more serious than others, seeking an examination and diagnosis from a podiatrist is a good idea. A podiatrist can treat each ailment and get you back on your feet again without pain.
Diagnosis of Athlete’s Foot

Athlete's foot is a fungal infection that primarily affects the skin on the feet often between the toes. It is caused by a fungus called dermatophyte, which thrives in warm, moist environments such as sweaty shoes and locker rooms. The symptoms include itching, redness, burning, and peeling of the skin, often accompanied by blisters or cracks. In severe cases, the infection may spread to the toenails or the soles of the feet. Diagnosing athlete's foot typically involves a physical examination of the affected area. A podiatrist may also take a skin sample for laboratory testing to confirm the presence of the fungus. If you have developed athlete’s foot, it is suggested that you consult a podiatrist who can effectively treat this condition.
Athlete’s foot is an inconvenient condition that can be easily reduced with the proper treatment. If you have any concerns about your feet and ankles, contact one of our podiatrists from The Sun Healthcare & Surgery Group. Our doctors will treat your foot and ankle needs.
Athlete’s Foot: The Sole Story
Athlete's foot, also known as tinea pedis, can be an extremely contagious foot infection. It is commonly contracted in public changing areas and bathrooms, dormitory style living quarters, around locker rooms and public swimming pools, or anywhere your feet often come into contact with other people.
Solutions to Combat Athlete’s Foot
- Hydrate your feet by using lotion
- Exfoliate
- Buff off nails
- Use of anti-fungal products
- Examine your feet and visit your doctor if any suspicious blisters or cuts develop
Athlete’s foot can cause many irritating symptoms such as dry and flaking skin, itching, and redness. Some more severe symptoms can include bleeding and cracked skin, intense itching and burning, and even pain when walking. In the worst cases, Athlete’s foot can cause blistering as well. Speak to your podiatrist for a better understanding of the different causes of Athlete’s foot, as well as help in determining which treatment options are best for you.
If you have any questions please feel free to contact our offices located in Antioch, Martinez, and Concord, CA . We offer the newest diagnostic and treatment technologies for all your foot and ankle needs.
How to Deal with Athlete's Foot
Athlete’s foot is a type of fungal infection that affects the skin on the feet. It is caused when the tinea fungus grows on the foot. It is possible to catch the fungus through direct contact with someone who has it or by touching a surface that is contaminated with it. This type of fungus thrives in warm, moist environments such as showers, locker room floors, and swimming pools. Your risk of getting it may also increase by wearing tight-fitting, closed-toe shoes, or by having sweaty feet.
Symptoms of athlete’s foot include itching, stinging or burning sensations between the toes. You may also experience toenails that are discolored, thick, crumbly, or toenails that pull away from the nail bed.
Your podiatrist may diagnose athlete’s foot by detecting these symptoms or by doing a skin test to see if there is a fungal infection present. The most common exam used to detect Athlete’s foot is a skin lesion potassium hydroxide exam. To use this method, your doctor will scrape off a small area of the infected skin and place it into potassium hydroxide. The potassium hydroxide will destroy the normal cells and leave the fungal cells untouched so that they are visible under a microscope.
There are a variety of treatment options for athlete’s foot. Some medications are miconazole (Desenex), terbinafine (Lamisil AT), clotrimazole (Lotrimin AF), butenafine (Lotrimin Ultra), and tolnaftate (Tinactin). While these options may be able to treat your fungus, it is best that you consult with a podiatrist in order to see which treatment option may work best for you.
In some cases, Athlete’s foot may lead to complications. A severe complication would be a secondary bacterial infection which may cause your foot to become swollen, painful, and hot.
There are ways that you can prevent athlete’s foot. Washing your feet with soap and water each day and drying them thoroughly is an effective way to prevent infections. You also shouldn’t share socks, shoes, or towels with other people. It is crucial that you wear shower sandals in public showers, around swimming pools, and in other public places. Additionally, you should make sure you wear shoes that can breathe and change your socks when your feet become sweaty. If you suspect that you have Athlete’s foot, you should seek help from a podiatrist as soon as possible.
Are Both Running and Walking Shoes Needed?

Walking shoes and running shoes are designed for different activities, offering unique features to optimize comfort and performance. Walking shoes are generally more flexible, with a cushioned sole that supports the natural rolling motion of the foot during walking. They provide stability and are ideal for low-impact activities. Running shoes have more substantial cushioning, shock absorption, and added support to handle the repetitive high-impact force of running. Running shoes also tend to be lighter and offer more flexibility in the forefoot for better toe-off. While it is possible to use one pair for both activities, having shoes designed specifically for each can enhance comfort, prevent injuries, and improve performance. Therefore, having both walking and running shoes is beneficial for those who regularly engage in both activities. If you have developed foot pain from wearing the wrong shoes while walking or running, it is suggested that you consult a podiatrist who can help you find relief tips, and guide you on the correct shoes to wear for your desired activity.
For more information about walking shoes versus running shoes, consult with one of our podiatrists from The Sun Healthcare & Surgery Group. Our doctors can measure your feet to determine what your needs are and help you find an appropriate pair of footwear.
Foot Health: The Differences between Walking & Running Shoes
There are great ways to stay in shape: running and walking are two great exercises to a healthy lifestyle. It is important to know that running shoes and walking shoes are not interchangeable. There is a key difference on how the feet hit the ground when someone is running or walking. This is why one should be aware that a shoe is designed differently for each activity.
You may be asking yourself what the real differences are between walking and running shoes and the answers may shock you.
Differences
Walking doesn’t involve as much stress or impact on the feet as running does. However, this doesn’t mean that you should be any less prepared. When you’re walking, you land on your heels and have your foot roll forward. This rolling motion requires additional support to the feet.
Flexibility – Walking shoes are designed to have soft, flexible soles. This allows the walker to push off easily with each step.
If you have any questions, please feel free to contact our offices located in Antioch, Martinez, and Concord, CA . We offer the newest diagnostic and treatment technologies for all your foot care needs.
Differences between Walking and Running Shoes
Both running and walking are great exercises, but should a person wear the same shoes for both activities? The answer is no, because there is a difference between the way a person’s feet hit the ground when they are walking and when they are running. Therefore, the shoes for each activity are designed differently. Before you begin any exercise program it is always recommended that you speak with your doctor or podiatrist.
Walking is a low impact exercise that is often recommended by doctors to their patients. While walking is a simple activity, it still requires some degree of preparation. If you think about walking and how your feet strike the ground as you move, you will notice that your heel hits the ground first before your foot continues to roll forward and your next step begins. Because of this rolling motion, walking shoes are designed to be more flexible than running shoes. This flexibility helps the walker push off with each step taken.
Because the heel hits the ground first when you walk, walking shoes are designed to absorb most of the shock. Walking shoes should therefore have a beveled or angled heel. The angle of the heel helps absorb the shock and reduces pressure from the ankles. This is especially important for speed walkers, as their feet will hit the ground twice as often as the normal walker.
When people decide to run as a hobby or for their health, they must first realize that running is a high impact exercise. If not done with the proper equipment, running may cause damage to the feet and legs. Running shoes are designed to be more lightweight and to have thicker soles. The thicker soles act as shock absorbers for the rest of the body. Walking shoes often do not have the proper arch support that running shoes do.
A proper fitting shoe can make or break a runner or a walker. If the shoes are too big, their feet will slide back and forth inside the shoe and cause blisters. Whether you will be running or walking, the right equipment can make all of the difference in the world.
Symptoms of Gout

Gout is a form of arthritis that occurs when uric acid builds up in the bloodstream, forming crystals in the joints. It often affects the big toe but can also impact the ankles and other joints. Gout is more common in men, especially those over 40, and people with conditions like obesity, high blood pressure, or diabetes are at a higher risk. Symptoms of gout include sudden, intense pain, swelling, redness, and warmth in the affected joint, often occurring at night. The pain can be excruciating, and even the lightest touch can feel unbearable. Gout attacks typically last for a few days but can recur if untreated. Treatment involves medications to reduce inflammation and lower uric acid levels. Lifestyle changes, such as avoiding alcohol and foods high in purines, are also recommended. A podiatrist can help manage gout symptoms, offer pain relief strategies, and provide advice on footwear. If you are experiencing this condition, it is suggested that you make an appointment with a this type of doctor.
Gout is a painful condition that can be treated. If you are seeking treatment, contact one of our podiatrists from The Sun Healthcare & Surgery Group. Our doctors will treat your foot and ankle needs.
What Is Gout?
Gout is a form of arthritis that is characterized by sudden, severe attacks of pain, redness, and tenderness in the joints. The condition usually affects the joint at the base of the big toe. A gout attack can occur at any random time, such as the middle of the night while you are asleep.
Symptoms
- Intense Joint Pain - Usually around the large joint of your big toe, and it most severe within the first four to twelve hours
- Lingering Discomfort - Joint discomfort may last from a few days to a few weeks
- Inflammation and Redness -Affected joints may become swollen, tender, warm and red
- Limited Range of Motion - May experience a decrease in joint mobility
Risk Factors
- Genetics - If family members have gout, you’re more likely to have it
- Medications - Diuretic medications can raise uric acid levels
- Gender/Age - Gout is more common in men until the age of 60. It is believed that estrogen protects women until that point
- Diet - Eating red meat and shellfish increases your risk
- Alcohol - Having more than two alcoholic drinks per day increases your risk
- Obesity - Obese people are at a higher risk for gout
Prior to visiting your podiatrist to receive treatment for gout, there are a few things you should do beforehand. If you have gout you should write down your symptoms--including when they started and how often you experience them, important medical information you may have, and any questions you may have. Writing down these three things will help your podiatrist in assessing your specific situation so that he or she may provide the best route of treatment for you.
If you have any questions, please feel free to contact our offices located in Antioch, Martinez, and Concord, CA . We offer the newest diagnostic and treatment technologies for all your foot care needs.
Gout
Gout is a form of arthritis that is caused by a buildup of uric acid crystals in the joints. This considered to be one of the most frequently recorded medical illnesses throughout history. Gout occurrences in the US have risen within the past twenty years and the condition now affects 8.3 million people which is 4% of all Americans. Researchers have found that gout affects men more than women and African-American men more than white men.
Symptoms of gout are warmth, swelling, discoloration, and tenderness in the affected joint area. The small joint on the big toe is the most common place for a gout attack to occur.
People who are obese, gain weight excessively, drink alcohol heavily, have high blood pressure, or have abnormal kidney function are more likely to develop gout. Furthermore, certain drugs and diseases are likely to increase levels of uric acid in the joints which eventually leads to gout. You are also more likely to develop gout if you eat a lot of meat and fish.
Many who experience gout attacks will experience repeated attacks over the years. Some people who have gout symptoms, may never have them again, but others may experience them several times a year. If you have gout symptoms throughout the year, you may have recurrent gout. Those who have gout should also be careful about their urate crystals collecting in their urinary tract, because this may lead to kidney stones.
Diagnosis for gout is done by checking the level of uric acid in the joints and blood. Your podiatrist may also prescribe medicine to reduce uric acid buildup in the blood, which will help prevent any gout attacks.
To treat gout, your podiatrist may also prescribe you Anti-inflammatory medication (NSAIDs) which will relieve the pain and swelling of a gout episode and it can also shorten a gout attack. Maintaining a healthy diet is also a proven method to prevent gout attacks.
Preserving Mobility and Health With Lower Limb Salvage

Lower limb salvage focuses on saving an at-risk leg or foot from limb loss due to severe injuries, infections, or complications from conditions like diabetes or peripheral artery disease. The goal is to restore functionality, preserve mobility, and improve quality of life while minimizing pain and complications. This task requires a multidisciplinary approach and often involves advanced techniques such as wound debridement, skin grafts, vascular procedures, and reconstructive surgery. Custom orthotics, braces, or special footwear may also be used to offload pressure and prevent further damage. Early intervention is critical, as untreated infections or poor circulation can escalate quickly. Lower limb salvage is a highly personalized process that considers each patient’s unique circumstances, focusing on long-term outcomes and independence. If you or a loved one are at risk, it is suggested that you include a podiatrist on your medical team to explore the best treatment options for preserving limb health and mobility.
Diabetic Limb Salvage
Diabetic limb salvage can be an effective way in preventing the need for limb amputation. If you have a foot ulcer and diabetes, consult with one of our podiatrists from The Sun Healthcare & Surgery Group. Our doctors will assess your condition and provide you with quality foot and ankle treatment.
What Is Diabetic Limb Salvage?
Diabetic limb salvage is the attempt of saving a limb, such as the foot, that has an infected ulcer, from amputation. Podiatrists also try to make sure that there is enough function in the foot after the salvage that it is still usable. Those with diabetes experience poor blood circulation, which prevents proper healing of an ulcer. If the ulcer is left uncheck, it could become infected, which could result in the need for amputation.
Diabetes is the number one cause of non-traumatic amputations in the United States. Amputation has been found to lead to higher mortality rates. This translates into higher healthcare costs, and a reduced quality of life and mobility for amputees. Podiatrists have attempted to increase the prevalence of limb salvage in an attempt to solve these issues.
Diagnosis and Treatment
Limb salvage teams have grown in recent years that utilize a number of different treatments to save the infected limb. This includes podiatrists that specialize in wound care, rehabilitation, orthotics, and surgery. Through a combination of these methods, limb salvage has been found to be an effective treatment for infected limbs, and as an alternative to amputation. Podiatrists will first evaluate the potential for limb salvage and determine if the limb can be saved or must be amputated.
If you have any questions, please feel free to contact our offices located in Antioch, Martinez, and Concord, CA . We offer the newest diagnostic and treatment technologies for all your foot care needs.