Why Do Compression Socks Hurt?

Compression socks are therapeutic garments engineered to enhance circulation by applying graduated pressure to the lower limbs. This pressure is strongest at the ankle and gradually decreases up the leg, encouraging blood flow back toward the heart and minimizing pooling. They are widely used to reduce swelling, alleviate leg fatigue, and prevent circulatory issues like deep vein thrombosis (DVT) during long periods of inactivity. Despite these benefits, many users report experiencing significant discomfort or pain when wearing them.

Pain Caused by Improper Fit and Application

Discomfort often stems from wearing a sock that is the wrong size or length. Socks that are too tight, especially at the top band, can create a tourniquet effect, pinching the skin and restricting blood flow. This improper fit can lead to numbness, a deep ache in the calf or foot, and painful indentations on the skin when removed.

Conversely, a sock that is too loose fails to provide the intended pressure gradient and may bunch up around the ankle or behind the knee. When the fabric folds or wrinkles, it creates a concentrated band of pressure that can restrict circulation and cause sharp, localized pain. This bunching often negates the circulatory benefits.

Selecting the incorrect pressure grade, measured in millimeters of mercury (mmHg), is another frequent cause of pain. Non-medical grades (8–15 mmHg or 15–20 mmHg) are suitable for general travel or mild swelling. Wearing a sock with a higher pressure, such as 20–30 mmHg or 30–40 mmHg, without medical necessity can cause intense constriction and aching. High-pressure garments are intended for medical conditions like severe varicose veins and should only be worn under a doctor’s guidance.

Improper application techniques can also cause pain. The sock must be pulled on smoothly, ensuring the heel cup is properly seated and there are no twists or wrinkles in the fabric, particularly around the ankle or the back of the knee. Wearing compression socks for excessive periods, such as while sleeping when not medically indicated, can also lead to discomfort, as they are designed for daytime wear.

When Pain Indicates a Health Risk

While most pain relates to fit, discomfort can sometimes signal a serious underlying health condition aggravated by compression. For individuals with Peripheral Artery Disease (PAD), where arteries carrying blood to the legs are already narrowed, wearing compression socks can be hazardous. The external pressure can further restrict limited arterial blood flow, potentially leading to ischemic pain or worsening existing tissue damage.

In cases of PAD, compression can provoke pain, numbness, or tingling, which are symptoms of neuropathy or nerve damage. This pain signals that the limb is not receiving sufficient oxygenated blood. If a person experiences an increase in pain while resting, worsening numbness, or a change in the color or temperature of the feet, they should immediately remove the socks and consult a healthcare provider.

Pain accompanied by skin changes like blistering, open sores, or significant discoloration requires immediate attention. These signs suggest a critical compromise of circulation or a severe skin reaction to the garment’s material. While compression socks are often recommended for venous issues, they are generally contraindicated for severe arterial conditions unless specifically prescribed by a vascular specialist.

Immediate Steps for Relief and Prevention

To immediately relieve severe pain, the compression socks should be removed, especially if accompanied by numbness, coldness, or skin discoloration. If the pain is mild, resting with the legs elevated may help, but persistent pain warrants re-evaluation of the fit. Prevention begins with professional measurement, as relying on shoe size alone is insufficient for proper compression therapy.

Consulting a medical professional or a certified fitter is the most effective way to ensure the correct size and pressure grade are selected based on precise ankle and calf circumference measurements. For individuals struggling to put on medical-grade socks, specialized donning tools, such as wire frames or silk-like liners, can ensure the sock is applied smoothly without creating painful folds. This minimizes the risk of concentrated pressure points.

If pain persists even with a correctly sized and applied sock, it may indicate a need to step down to a lower compression level, such as moving from 20–30 mmHg to 15–20 mmHg. Monitor the skin daily for any signs of irritation, sores, or excessive indentations that do not fade quickly. Any pain that feels deeper than surface discomfort or is associated with nerve symptoms should prompt a conversation with a doctor to rule out underlying vascular issues.