Tendon Problems

Key takeaways

• Main treatment: progressive loading exercise, often with a physical therapist
• Timescale: months rather than weeks
• Most useful single change: Load the tendon progressively under guidance rather than resting it.
• Commonest mistake: Complete rest, which weakens the tendon.
• See a doctor if any of the signs under "When to get help" below apply to you.

Why it matters

Tendons respond to gradual, progressive loading rather than rest, which is the opposite of what most people do.

The numbers, in one place

Published figures for Tendon Problems

Measure	Figure
Main treatment	progressive loading exercise, often with a physical therapist
Timescale	months rather than weeks
Rest alone	weakens the tendon further
Steroid injections	short-term relief; may not help, or may harm, in the long run for some tendons
Common contributor	a sudden increase in training load

What helps

• Load the tendon progressively under guidance rather than resting it
• Expect improvement over months and keep going
• Reduce but do not stop activity while rehabilitating
• Address the training error that caused it

What to avoid

• Complete rest, which weakens the tendon
• Repeated steroid injections without advice from a sports medicine or orthopedic doctor
• Returning to full load as soon as pain settles

In depth

Tendons are tough cords that connect muscles to bones, transmitting the force that moves your joints. They are strong but adapt slowly, because they have a relatively limited blood supply and their cells turn over gradually. When a tendon is loaded more than it is used to, particularly when load rises quickly, it can become painful and stiff. This is usually called tendinopathy, and in many long-standing cases the problem is less about inflammation and more about disorganized repair of the tendon fibers.

Common sites include the Achilles tendon above the heel, the patellar tendon below the kneecap, the rotator cuff tendons of the shoulder, and the tendons on the outside or inside of the elbow, known as tennis and golfer's elbow. Tendons around the hip and the thumb side of the wrist are also frequently affected. Each has a typical pattern of pain, often worst when starting activity, easing as the tendon warms up, and returning afterward or the next morning.

Tendons respond to load, which is both how they get injured and how they recover. Complete rest reduces pain in the short term but weakens the tendon, so problems often return as soon as activity resumes. Gradual, structured strengthening, usually over three months or more, helps the tendon rebuild capacity. Understanding this timescale prevents frustration and the temptation to keep chasing quick fixes.

Signs and symptoms

• Pain at a specific point along a tendon, often worse when starting activity
• Morning stiffness in the area that eases with movement
• Pain on loading, such as hopping, gripping or lifting the arm overhead
• Tenderness when pressing on the tendon
• Thickening or a lump in the tendon in long-standing cases

Causes and risk factors

• A sudden increase in training volume, speed or intensity
• Repetitive gripping, lifting or overhead work
• Age-related changes that reduce tendon resilience
• Diabetes, high cholesterol and excess weight
• Fluoroquinolone antibiotics, especially in people over 60 or also taking steroids
• Muscle weakness or changes in technique or equipment

How it is checked

A doctor or physical therapist can usually diagnose tendinopathy from where the pain is, what activities trigger it and an examination that loads the tendon. They will press along the tendon, test strength and use specific movements that provoke typical pain. They will also check for signs of a rupture, such as weakness or a gap, and for nearby joint problems that can mimic tendon pain.

Imaging is not always needed. Ultrasound can show thickening, tears and changes in the tendon structure, and MRI may be used when a tear is suspected or the diagnosis is unclear. Imaging findings do not always match pain, so treatment is guided mainly by symptoms and function. Blood tests are sometimes used to look for inflammatory conditions if several tendons are involved.

Related topics

• Plantar Heel Pain: Sorting the Evidence From the Noise (Foot Health)
• Running for Beginners: What Published Guidance Supports (Fitness)
• What the Guidance Really Says About Returning to Activity After Illness (Rehabilitation)
• Neck Pain: What the Evidence Actually Says (Back and Posture)

Where to go next

• Tendon Problems: Separating Myth From Guidance
• The First Steps With Tendon Problems
• Bone and Joint: The Complete Guide
• What the Guidance Really Says About Vitamin D and Bone
• Sports Injuries: What Published Guidance Supports

When to get help

Seek prompt care at urgent care or the emergency room for a sudden sharp pain with a pop or snap, an inability to push off or raise the arm, or a visible gap in the tendon — these suggest a rupture. Fluoroquinolone antibiotics such as ciprofloxacin carry an FDA warning for tendon rupture: contact your doctor right away about new tendon pain while taking them. Call 911 for a serious injury with severe pain, deformity or inability to move the limb.

Where this comes from

• FDA — FDA Drug Safety Communication: FDA updates warnings for oral and injectable fluoroquinolone antibiotics due to disabling side effects
• MedlinePlus — Tendinitis

How this page was put together

Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarized or generalized beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.

Medical disclaimer

This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to your doctor, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 911.