Metatarsalgia is a condition marked by pain and inflammation in the ball of your foot. You may experience metatarsalgia if you're physically active and your feet are impacted by running and jumping. Or, you may develop metatarsalgia by wearing ill-fitting shoes. There are other causes as well. Although generally not serious, metatarsalgia can sideline you. Fortunately, conservative treatments, such as ice and rest, can often relieve metatarsalgia symptoms. And proper footwear, along with shock-absorbing insoles or arch supports, may be all you need to prevent or minimize future problems with metatarsalgia.

Complications of Metatarsalgia

Left untreated, metatarsalgia may lead to:

• Pain in other parts of the same or opposite foot
• Pain elsewhere in the body, such as the low back or hip, due to limping (altered gait) from foot pain

Causes of Metatarsalgia

In each foot, five metatarsal bones run from your arch to your toe joints. The first metatarsal is shorter and thicker than the other four bones, which are usually similar in size. During the push-off phase when you walk, jump or run, your body weight is transferred to your toes and metatarsals. The first and second metatarsal bones take the brunt of this force. Most metatarsal problems develop when the impact load or the mechanics of your foot affect the way your weight is distributed. This can put excess pressure on the metatarsals, leading to inflammation and pain, especially in the metatarsal heads — the rounded ends of the bones that connect with your toe bones.\

Sometimes a single factor can lead to metatarsalgia. More often, several factors are involved, including:

• Intense training or activity. Runners are at risk of metatarsalgia, primarily because the front of the foot absorbs significant force when running. But anyone who participates in a high-impact sport is also at risk, especially if your shoes are ill-fitting or are worn out.
• Certain foot shapes. A high arch can put extra pressure on the metatarsals. So can having a second toe that's longer than the big toe, which causes more weight than normal to be shifted to the second metatarsal head.
• Hammertoe. This foot problem can develop when high heels or too-small shoes prevent your toes from lying flat. As a result, one of your toes — usually the second — curls downward because of a bend in the middle toe joint. This contraction depresses the metatarsal heads.
• Bunion. This is a swollen, painful bump at the base of your big toe. Sometimes the tendency to develop bunions is inherited, but the problem can also result from wearing high heels or too-small shoes. Bunions are much more common in women than in men. A bunion can weaken your big toe, putting extra stress on the ball of your foot. Surgery to correct a bunion can also lead to metatarsalgia if you don't rest enough after surgery.
• Excess weight. Because most of your body weight transfers to your forefoot when you move, extra pounds mean more pressure on your metatarsals. Losing weight may reduce or eliminate symptoms of metatarsalgia.
• Poorly fitting shoes. High heels, which cause more weight to be transferred to the front of the foot, are a common cause of metatarsalgia in women. Shoes with a narrow toe box or athletic shoes that lack support and padding also can contribute to metatarsal problems.
• Stress fractures. Small breaks in the metatarsals or toe bones can be painful and change the way you put weight on your foot.
• Morton's neuroma. This noncancerous growth of fibrous tissue around a nerve usually occurs between the third and fourth metatarsal heads. It causes symptoms that are similar to metatarsalgia and can also contribute to metatarsal stress. Morton's neuroma frequently results from wearing high heels or too-tight shoes that put pressure on your toes. It can also develop after high-impact activities such as jogging and aerobics.

Signs & Symptoms of Metatarsalgia

Symptoms of metatarsalgia may include:

• Pain in the ball of your foot — the part of the sole just behind your toes
• Sharp, aching or burning pain
• Pain in the area around your second, third or fourth toes — or, only near your big toe
• Pain that gets worse when you stand, walk or run and improves when you rest
• Sharp or shooting pain in your toes
• Numbness or tingling in your toes
• Pain that worsens when you flex your feet
• A feeling in your feet as if you're walking with a pebble in your shoe
• Increased pain when you're walking barefoot, especially on a hard surface

Sometimes these symptoms develop suddenly — especially if you've recently increased your usual amount of running, jumping or other high-impact exercise — but problems usually develop over time.

Diagnosis of Metatarsalgia

Various foot problems can cause symptoms similar to those of metatarsalgia. To help pinpoint the source of your pain, your doctor will examine your foot and ask about your lifestyle and activity level. You may need an X-ray to identify or rule out a stress fracture or other foot problems.

Treatments of Metatarsalgia

Conservative measures usually relieve the pain of metatarsalgia.

• Rest. Protect your foot from further injury by not stressing it. You may need to avoid your favorite sport for a while, but you can stay fit with low-impact exercises, such as swimming and cycling. Continue with stretching and lower body strength training as your pain permits.
• Ice the affected area. Apply ice packs to the affected area for about 20 minutes at a time, several times a day. To protect your skin, wrap the ice packs in a thin towel.
• Take an over-the-counter pain reliever. Try ibuprofen (Advil, Motrin, others), naproxen (Aleve) or aspirin to reduce pain and inflammation.
• Wear proper shoes. Your doctor may recommend a shoe that's especially suited for your foot type, your stride and your particular sport.
• Try shock-absorbing insoles. These off-the-shelf shoe inserts — often made of cork, plastic, rubber or a gel-like substance — fit inside your shoes to help cushion shock.
• Use metatarsal pads. These off-the-shelf pads are placed in your shoes just ahead of the metatarsal bone to help deflect stress away from the painful area.
• Consider arch supports. If insoles don't help, your doctor may recommend arch supports to minimize stress on the metatarsal bones and improve foot function. Off-the-shelf arch supports come in various sizes and can be fitted immediately. More durable arch supports can be custom-made from a plaster cast of your foot.

Rigid arch supports are made of a firm material such as plastic or carbon fiber. They're designed to control motion in two major foot joints below your ankles. Semirigid arch supports are made of softer materials such as leather and cork reinforced by silicone. Arch supports designed to treat metatarsalgia may include metatarsal pads, too. If conservative treatments fail, surgery to realign the metatarsal bones may be an option. If you're considering foot surgery, discuss the benefits and risks with your doctor.

Prevention of Metatarsalgia

When you're serious about sports, your metatarsals may take a beating. But that doesn't mean you have to live with pain and injuries. To help protect your feet:

• Choose the right shoes. Wearing high heels or too-small shoes can set the stage for a host of foot problems, including metatarsalgia. The same is true of shoes that don't provide enough support and cushioning. Look for shoes with a wide toe box and a rocker sole, which redistribute weight on the bottom of your foot.
• Consider cushioned insoles or arch supports. These products can help prevent the pain of metatarsalgia — as well as relieve the pain when it develops.
• Maintain a healthy weight. Keeping your weight within a healthy range can take a load off your feet.

If you're recovering from an injury, don't try to resume strenuous activity too soon. If you're not completely healed — or you train through the pain — you may only develop more severe problems and longer layoffs later on.

When to seek Medical Advice

Not all foot problems need medical care. Sometimes your feet simply ache after a long day of standing or a punishing workout. But it's best not to ignore any foot pain that lasts more than a few days. Talk to your doctor if you experience a burning pain in the ball of your foot that doesn't improve after changing your shoes and modifying your activities.