You are at an increased risk of gradual wear and tear damaging your plantar fasciitis if you are overweight or obese - if you have a body mass index (BMI) of 30 or over, you are considered to be obese, have a job that involves spending long periods of time standing, wear flat-soled shoes - such as sandals or flip flops. Less common causes of heel pain are described below. A stress fracture can occur if your heel bone is damaged during an injury. Fat pad atrophy is where the layer of fat that lies under the heel bone, known as the fat pad, starts to waste away due to too much strain being placed on the pad. Women who wear high-heeled shoes for many years have an increased risk of developing fat pad atrophy. Bursitis is inflammation of one or more bursa (small fluid-filled sacs under the skin, usually found over the joints and between tendons and bones). It's possible to develop bursitis anywhere inside the body, not just in the foot. Tarsal tunnel syndrome. The nerves in the sole of your foot pass through a small tunnel on the inside of the ankle joint, known as the tarsal tunnel. If a cyst forms or the tunnel is damaged, the nerves can become compressed (squashed). This can cause pain anywhere along the nerve, including beneath your heel. Sever's disease is a common cause of heel pain in children. It's caused by the muscles and tendons of the hamstrings and calves stretching and tightening in response to growth spurts. The stretching of the calf muscle pulls on the Achilles tendon. This pulls on the growing area of bone at the back of the heel (growth plate), causing pain in the heel. The pain is further aggravated by activities such as football and gymnastics. The pain often develops at the side of the heel, but can also be felt under the heel. Calf and hamstring stretches and, if necessary, heel pads are usually effective treatments for Sever's disease. Bone spurs are an excess growth of bone that forms on a normal bone. Bone spurs can develop on the heel (a heel spur) and are more common in people with heel pain. However, they can also occur in people without heel pain. A heel spur does not cause heel pain.
Plantar fasciitis can come from a number of underlying causes. Finding the precise reason for the heel pain is sometimes difficult. As you can imagine, when the foot is on the ground a tremendous amount of force (the full weight of the body) is concentrated on the plantar fascia. This force stretches the plantar fascia as the arch of the foot tries to flatten from the weight of your body. This is just how the string on a bow is stretched by the force of the bow trying to straighten. This leads to stress on the plantar fascia where it attaches to the heel bone. Small tears of the fascia can result. These tears are normally repaired by the body. As this process of injury and repair repeats itself over and over again, a bone spur (a pointed outgrowth of the bone) sometimes forms as the body's response to try to firmly attach the fascia to the heelbone. This appears on an X-ray of the foot as a heel spur. Bone spurs occur along with plantar fasciitis but they are not the cause of the problem. As we age, the very important fat pad that makes up the fleshy portion of the heel becomes thinner and degenerates (starts to break down). This can lead to inadequate padding on the heel. With less of a protective pad on the heel, there is a reduced amount of shock absorption. These are additional factors that might lead to plantar fasciitis. Some physicians feel that the small nerves that travel under the plantar fascia on their way to the forefoot become irritated and may contribute to the pain. But some studies have been able to show that pain from compression of the nerve is different from plantar fasciitis pain. In many cases, the actual source of the painful heel may not be defined clearly. Other factors that may contribute to the development of plantar fasciitis include obesity, trauma, weak plantar flexor muscles, excessive foot pronation (flat foot) or other alignment problems in the foot and or ankle, and poor footwear.
Pain in the heel can be caused by many things. The commonest cause is plantar fascitis. Other causes include, being overweight, constantly being on your feet, especially on a hard surface like concrete and wearing hard-soled footwear, thinning or weakness of the fat pads of the heel, injury to the bones or padding of the heel, arthritis in the ankle or heel (subtalar) joint, irritation of the nerves on the inner or outer sides of the heel, fracture of the heel bone (calcaneum).
Your doctor will perform a physical exam and ask questions about your medical history and symptoms, such as have you had this type of heel pain before? When did your pain begin? Do you have pain upon your first steps in the morning or after your first steps after rest? Is the pain dull and aching or sharp and stabbing? Is it worse after exercise? Is it worse when standing? Did you fall or twist your ankle recently? Are you a runner? If so, how far and how often do you run? Do you walk or stand for long periods of time? What kind of shoes do you wear? Do you have any other symptoms? Your doctor may order a foot x-ray. You may need to see a physical therapist to learn exercises to stretch and strengthen your foot. Your doctor may recommend a night splint to help stretch your foot. Surgery may be recommended in some cases.
Non Surgical Treatment
Rest until there is no more pain. This is the most important element of treatment as continuing to walk or run on the injured foot will not allow the injury to heal. Wear soft trainers with lots of cushioning or pad the heel of shoes with shock absorbing insoles or heel pads. These should be worn in both shoes, even if only one heel is bruised. Wearing a raise in only one shoe causes a leg length difference which can cause other problems. Replace running shoes if they are old. A running shoe is designed to last for around 400 miles of running. After this the mid soles are weakened through use.
Surgery to correct heel pain is generally only recommended if orthotic treatment has failed. There are some exceptions to this course of treatment and it is up to you and your doctor to determine the most appropriate course of treatment. Following surgical treatment to correct heel pain the patient will generally have to continue the use of orthotics. The surgery does not correct the cause of the heel pain. The surgery will eliminate the pain but the process that caused the pain will continue without the use of orthotics. If orthotics have been prescribed prior to surgery they generally do not have to be remade.
How do you treat heel pain?
Before you get out of bed in the morning, and then periodically throughout the day, do the following exercises to increase flexibility and ease pain. Slowly flex your foot and toes to stretch the tissue on the bottom of your sore foot. Hold the stretch for 10 counts. Relax and repeat. Do gentle ankle rolls to keep the tissues around the ankle and on the back of the heel flexible. Sit on the edge of your bed and roll your foot back and forth over a tennis ball.