Achilles Pain in the Morning: Why Those First Steps Hurt

Pain and stiffness in the back of your heel on your first steps out of bed is a common pattern in an irritated Achilles tendon.

Why it happens

The Achilles is the thick cord at the back of your ankle that joins your calf muscles to your heel bone. It's a large, strong tendon that handles a lot of force every time you walk, run or push off.

When it gets irritated, the standout symptom is what happens after rest. NHS services describe it the same way across the board: pain and stiffness at the back of the heel on the first steps when you get out of bed, or after sitting still for a while, which usually eases after a few minutes of moving. The tendon may also feel tender or slightly thickened if you pinch it, and it can feel warm.

Why is it worse in the morning specifically? Morning stiffness may be partly related to the tendon being still overnight, although the exact reason isn't fully understood. Movement seems to settle it, which is why the first few steps are the worst and things loosen as you go. This pattern can be a useful clue, but an examination may be needed to confirm where the pain is actually coming from.

There's a second, useful thing about morning stiffness: it makes a good measuring stick. If your morning stiffness is the same or less the day after you exercised, the tendon handled what you gave it. If it's clearly worse, that was too much. It's one of the few honest daily signals you get from a tendon.

One thing to know about tests. You usually don't need a scan for this. NHS guidance says tendon problems are normally diagnosed from your history and an examination and rarely need imaging. If imaging is needed, it might be an ultrasound or an MRI, depending on what's being checked — but for most people, it changes nothing about the plan.

⚠️ When to see a doctor in person

Get medical help the same day if you felt a sudden snap or a sensation like being kicked in the back of the leg, if you can't push off or stand on tiptoe on that leg, or if there's bruising, a gap you can feel in the tendon, or a sudden major loss of push-off strength after an injury.

• Get urgent medical advice for new one-sided calf pain or swelling, especially after travel, surgery, illness or a period of not moving much — this doesn't need a fever to matter. Call emergency services if this comes with chest pain or sudden breathlessness.
• Book an appointment if the pain is high up in the calf or right on the heel bone rather than in the cord itself, if there's numbness or pins and needles in the foot, if both Achilles tendons hurt without an obvious reason, or if there's no improvement after around 12 weeks. Both-sided symptoms along with prolonged morning stiffness, swollen joints, or back pain that feels inflammatory are also worth a medical review. If you have diabetes, an inflammatory condition, have recently used steroids, or have had a previous tendon rupture, get individual advice rather than following this guide alone.
• If Achilles pain starts while you're taking a fluoroquinolone antibiotic (names ending in -floxacin), stop taking it, rest the area, and contact the prescriber immediately — don't wait for a routine appointment.

Morning heel stiffness that eases as you walk is the ordinary pattern, not one of these. As a general guide: pain 2 to 6 cm above the heel is the common "midportion" pattern, while pain right where the tendon meets the heel bone is different and may need different exercises — see the note on heel raises below.

Starter exercises

Two things, done consistently. Nothing here needs equipment beyond a step.

Isometric calf hold — Stand near a wall for balance. Rise onto your toes on both feet, then take most of your weight onto the sore leg and hold still for 30 to 45 seconds. Lower gently. 4 to 5 holds with a minute's rest between. Good for painful days and for mornings.

Slow heel raises — Stand on both feet, rise onto your toes over about 3 seconds, then lower over about 3 seconds. Start flat on the floor. Start with a manageable amount, such as 2 to 3 sets of 8 to 12, once a day, and build up if the next morning feels no worse. If your pain is in the middle of the tendon, you can later progress to doing these off the edge of a step so the heel drops below toe level. If your pain is where the tendon meets the heel bone, keep this exercise on flat ground unless a clinician advises otherwise — the step version can aggravate that kind of pain. Keep the movement smooth — no dropping.

A morning trick — Before your first steps, sit on the edge of the bed and do 10 slow, gentle ankle circles or point-and-flex movements each way. It won't fix anything, but it can take the edge off the first minute.

Some pain during these is expected and acceptable. The usual limit in tendon rehab is mild pain that settles and isn't worse the next morning.

Progression note

Change the exercise, not the pain limit. Progress by adding repetitions, adding weight, or using less help from the other leg — a step is one option for progression but is optional, and may not suit pain at the heel attachment. Move up a level only when the current one leaves your morning stiffness no worse. Add running back in gradually, distance before speed. NHS Achilles guidance and the research both point to a timeline of around 12 weeks for meaningful change, and sometimes longer. Seek advice sooner if symptoms are severe or getting worse; otherwise, get assessed if a consistent programme has made little difference after about 8 to 12 weeks.

Bottom line

Morning pain around the Achilles that eases with movement is a common tendinopathy pattern, but it's not the only possible cause of heel pain, and it's best confirmed by history and examination rather than by scans. Loading it gradually is the treatment that has the best support. Use tomorrow morning's stiffness to judge whether today's exercise was the right amount.