Unsure about What All these Medical Terms Mean? (Plantar Fasciitis)
Plantar Fasciitis and Heel Spurs: Symptoms, Causes and Treatment Options
Plantar fasciitis is one of the most common causes of pain under the heel. It often feels worst with the first steps in the morning, after sitting, or when activity increases suddenly. This guide explains what plantar fasciitis is, how it differs from a heel spur, and which treatments may help.
What is plantar fasciitis?
The plantar fascia is a strong band of connective tissue that runs along the bottom of the foot from the heel bone toward the toes. It helps support the arch and plays a role in absorbing and transferring force while standing, walking and running.
Plantar fasciitis develops when this tissue becomes irritated and less able to tolerate repeated loading. Despite the word "fasciitis," which suggests inflammation, long-lasting cases may involve tissue degeneration and failed healing rather than inflammation alone. For this reason, some clinicians also use the term plantar fasciopathy. 1 2
Typical pain location: Plantar fasciitis most often causes pain near the inside portion of the bottom of the heel. Some people also feel discomfort extending into the arch of the foot.
Understanding plantar fasciitis and heel pain
The image below highlights the area of the foot commonly associated with plantar fascia irritation and heel pain.
What is a heel spur?
A heel spur is a bony projection that can form on the heel bone, also called the calcaneus. Heel spurs are often associated with long-term stress where the plantar fascia and other tissues attach to the heel.
A heel spur can be seen on an X-ray, but its presence does not prove that it is causing pain. Many people have heel spurs without symptoms, while many people with plantar fasciitis do not have a prominent spur. In many cases, pain is more closely related to irritation and reduced load tolerance in the surrounding soft tissues than to the bony growth itself. 1 3
Plantar fasciitis
- A soft-tissue problem involving the plantar fascia
- Often causes first-step pain after rest
- Usually diagnosed from symptoms and physical examination
Heel spur
- A bony growth visible on imaging
- May be present without any pain
- Does not always require treatment
Common plantar fasciitis symptoms
The most recognizable symptom is heel pain that is worse during the first few steps after getting out of bed. Pain may also increase after sitting for a long period, after exercise, or following hours of standing.
Common symptoms include:
- Sharp, stabbing or aching pain under the heel
- Pain that is strongest with the first steps in the morning
- Pain after sitting or resting
- Discomfort after prolonged standing, walking or running
- Tenderness near the inner underside of the heel
- Occasional tightness through the arch or calf
The pain may ease after several minutes of movement as the foot warms up, but it can return after prolonged loading. This pattern is common, but not every case of heel pain is plantar fasciitis.
What causes plantar fasciitis?
Plantar fasciitis is usually not caused by one single event. It often develops when the load placed on the plantar fascia increases faster than the tissue can adapt.
Common risk factors
- A sudden increase in activity: Rapidly increasing walking, running, jumping, hiking or time spent standing can overload the plantar fascia.
- Prolonged standing: Jobs or daily routines that involve many hours on hard surfaces may increase symptoms.
- Reduced ankle flexibility: Tight calf muscles or limited ankle movement can increase strain through the foot.
- Changes in body weight: Recent weight gain may increase the load carried by the feet.
- Foot mechanics: Flat feet, high arches or altered walking mechanics may contribute, although foot shape alone does not determine who develops plantar fasciitis.
- Unsupportive or worn footwear: Shoes that are uncomfortable, excessively worn or poorly suited to the activity may aggravate symptoms.
- Age: Plantar fasciitis is common in middle-aged adults, although it can affect people at many ages.
Important correction: A specific "inflammatory diet" has not been established as a direct cause of plantar fasciitis. Overall nutrition matters for general health and body weight, but plantar fasciitis is more strongly associated with mechanical loading, activity changes and tissue capacity.
Evidence-informed plantar fasciitis treatment options
Most people begin with conservative treatment. Improvement can take time, and a combination of strategies is often more effective than relying on one product or treatment alone.
| Treatment | How it may help | Important considerations |
|---|---|---|
| Activity modification | Reduces repeated stress while the plantar fascia regains its tolerance to load. | Complete inactivity is usually unnecessary. Reduce the most aggravating activities and return gradually. |
| Plantar fascia stretching | May reduce first-step pain and improve flexibility through the bottom of the foot. | Stretch gently and consistently. Avoid forcing the foot into sharp pain. |
| Calf stretching | May improve ankle flexibility and reduce strain transferred to the plantar fascia. | Stretch both the straight-knee and bent-knee calf positions when appropriate. |
| Supportive footwear | Can improve comfort and reduce strain during standing and walking. | Shoes should fit well and match the activity. Avoid relying on worn-out footwear. |
| Heel cups or orthotic inserts | May provide short-term cushioning or redistribute pressure. | Prefabricated inserts may be sufficient for many people. Custom devices are not always necessary. |
| Night splints | Hold the ankle and toes in a gentle stretched position during sleep and may reduce morning pain. | They can feel uncomfortable at first. Fit and tolerance matter. |
| Physical therapy | Can address strength, mobility, walking mechanics and a gradual return to activity. | Particularly useful when symptoms persist or activity demands are high. |
| Extracorporeal shockwave therapy | May help some cases of chronic plantar fasciitis that have not improved with basic care. | Results vary, and treatment should be discussed with a qualified clinician. |
| Corticosteroid injection | May provide short-term pain relief in selected cases. | Repeated injections can carry risks, including plantar fascia rupture and tissue damage. |
| Surgery | May be considered for severe, persistent cases that do not improve after extensive conservative treatment. | Surgery is generally a last resort because it carries recovery time and potential complications. |
Simple stretches for plantar fasciitis pain
Plantar fascia stretch
- Sit in a chair and cross the affected foot over the opposite knee.
- Hold the toes and gently pull them back toward the shin.
- You should feel a mild stretch along the bottom of the foot and arch.
- Hold gently without bouncing and stop if the stretch causes sharp pain.
Wall calf stretch
- Stand facing a wall with both hands supported against it.
- Step the affected foot behind you.
- Keep the back heel on the floor and the knee straight.
- Lean forward until a gentle stretch is felt through the calf.
Bent-knee calf stretch
- Use the same wall position.
- Bend the back knee slightly while keeping the heel in contact with the floor.
- This changes the stretch to target a deeper calf muscle called the soleus.
Morning tip: Try gentle foot and calf movement before standing up. Supportive footwear placed near the bed may also be more comfortable than immediately walking barefoot on a hard floor.
Can compression socks help plantar fasciitis?
Compression socks or sleeves may provide a feeling of support and may help manage swelling when swelling is present. However, evidence that compression alone treats plantar fasciitis is limited.
Compression products are best considered a comfort tool rather than a complete treatment. They should be combined with appropriate footwear, stretching, load management and professional care when needed.
Remove compression wear and seek guidance if it causes numbness, tingling, skin discoloration, increased pain or unusual swelling. People with circulation problems, neuropathy, diabetes or certain vascular conditions should ask a healthcare professional before using compression products.
When should you see a healthcare professional?
Arrange an evaluation if heel pain is severe, keeps returning, affects normal walking, or does not begin to improve with appropriate self-care.
Seek prompt medical attention for:
- Heel pain after a fall, impact or sudden injury
- An inability to bear weight on the foot
- Significant swelling, redness, warmth or fever
- Numbness, tingling or weakness
- An open wound, skin breakdown or signs of infection
- Pain accompanied by unexplained swelling in the calf
People with diabetes, poor circulation, neuropathy or a history of foot ulcers should seek professional guidance promptly rather than relying only on self-treatment.
Frequently asked questions
How long does plantar fasciitis take to heal?
Recovery time varies. Some people improve over several weeks, while persistent cases may take several months. Consistent stretching, appropriate footwear and gradual load management are often more important than a quick fix.
Should I walk barefoot with plantar fasciitis?
Barefoot walking is not automatically harmful, but hard surfaces may aggravate symptoms in some people, especially during the first steps after rest. Supportive footwear may be more comfortable during a painful phase.
Does a heel spur need to be removed?
Usually not. Many heel spurs do not cause symptoms. Treatment is more commonly directed at the irritated plantar fascia and surrounding tissues rather than the spur itself.
Is ice helpful for plantar fasciitis?
Ice may provide temporary pain relief after an aggravating activity. Protect the skin with a cloth barrier and avoid applying ice directly or for prolonged periods.
Are orthotics necessary?
Not always. Some people benefit from heel cups or prefabricated shoe inserts. Custom orthotics may be considered when symptoms persist or when a clinician identifies a specific need.
Key takeaways
Plantar fasciitis is a common cause of heel pain, especially when pain is strongest during the first steps after rest. A heel spur may appear on an X-ray, but it is often not the direct source of symptoms.
The most useful first steps usually include adjusting aggravating activities, stretching the plantar fascia and calf, wearing supportive footwear and returning to normal activity gradually. Persistent or unusual heel pain deserves a professional assessment because several other conditions can cause similar symptoms.
Sources and further reading
- American Academy of Orthopaedic Surgeons, OrthoInfo. Plantar Fasciitis and Bone Spurs .
- Mayo Clinic. Plantar fasciitis: Symptoms and causes .
- National Health Service. Plantar fasciitis .
- American Family Physician. Plantar Fasciitis .
