Dupuytren’s contracture is a progressive hand condition that causes fingers to bend toward the palm, making it impossible to straighten them fully. This disorder affects the tissue beneath the skin of the hand and typically develops slowly over many years, often without warning.

Epidemiology

Dupuytren’s contracture is relatively uncommon, affecting approximately 5% of people worldwide. The condition shows strong patterns related to ancestry and geography. People of Northern European descent, particularly those with Scandinavian heritage, are far more likely to develop this condition than individuals from other ethnic backgrounds. The condition is sometimes referred to as “Viking disease” due to its high prevalence in populations with Norse ancestry, and historical records trace it back to 865 AD.^[1][2]

The demographic patterns of Dupuytren’s contracture are quite distinct. Men are three to four times more likely to develop the condition than women, and when men do develop it, they tend to experience more severe symptoms. The condition typically appears in middle age or later, becoming most prevalent in people over age 50. However, when it develops at a younger age, the disease tends to be more aggressive and severe.^[6][8]

Causes

The exact cause of Dupuytren’s contracture remains unknown, though researchers have identified several important factors. The condition is fundamentally a genetic disorder, meaning it runs in families and is passed down through generations. If you have a family member who has experienced Dupuytren’s contracture, your risk of developing it increases significantly.^[2]

The disease develops when collagen, a protein that forms fiber-like structures in connective tissue, begins to build up abnormally beneath the skin of the palm. This buildup causes the normally thin layer of tissue called the fascia, which lies underneath the skin and above the tendons, nerves, blood vessels, and bones, to thicken and tighten. The fascia in a healthy hand helps anchor and stabilize the skin on the palm. In people with Dupuytren’s contracture, this tissue gradually becomes thicker and contracts, or shortens, over time.^[3][7]

While genetics plays the most important role, most evidence points toward a complex interplay of factors rather than a single cause. The condition is not contagious and cannot be transmitted from person to person. It also cannot develop in other parts of your body, though people with Dupuytren’s contracture may be more likely to experience similar conditions affecting other areas, such as Ledderhose disease in the feet or Peyronie’s disease affecting the genital area in men.^[2][6]

Risk Factors

Several factors can increase your likelihood of developing Dupuytren’s contracture. Understanding these risk factors can help you recognize the condition early if you notice symptoms developing.^[2]

Age is one of the most significant risk factors. The condition typically appears in middle age, with severity increasing as people get older. Most cases are diagnosed in individuals over 40 years old, and the prevalence continues to rise with advancing age.^[6]

Gender plays a substantial role, as men are much more likely than women to develop Dupuytren’s contracture. When women do develop the condition, they often experience milder symptoms and slower progression.^[8]

Family history and ancestry are critical factors. If your parents, siblings, or other close relatives have had Dupuytren’s contracture, your risk increases considerably. People of European descent, particularly those with Northern European or Scandinavian ancestry, face much higher risk than those from African or Middle Eastern backgrounds.^[6]

Certain existing medical conditions may increase the likelihood of developing Dupuytren’s contracture. People with diabetes appear to have a higher risk, as do those with epilepsy or other seizure disorders. Individuals with alcohol use disorder (formerly called alcoholism) may face increased risk, and smoking may contribute to the development or worsening of the condition. Other conditions associated with higher risk include HIV, AIDS, and vascular disease affecting blood vessels.^[2][10]

Contrary to some beliefs, there is no strong evidence that hand injuries or specific types of work directly cause Dupuytren’s contracture. However, there may be a mild relationship between hand trauma and the condition in people who are already at risk.^[6]

Symptoms

Dupuytren’s contracture develops gradually, often taking many months or even years to progress from early signs to more advanced stages. Because the progression is typically slow, you might not notice any symptoms initially. When symptoms do appear, they usually follow a predictable pattern.^[1][2]

The first sign is usually the appearance of small bumps called nodules under the skin of your palm. These nodules typically form at the base of your fingers where they meet your palm. You may be able to feel them or see them creating a raised area. The nodules might make the skin around them look dimpled or puckered, creating deep dents in the palm’s surface. Some nodules can be uncomfortable or tender when they first appear, though many are painless. For some people, symptoms never progress beyond these nodules, and in rare cases, the nodules may even disappear on their own.^[2][5]

Over time, the nodules may thicken and extend into tough, rope-like structures called cords that run from the palm into one or more fingers. These cords are made of thickened fascia tissue, not tendons, though they may look and feel similar to tendons. The cords can pull on your fingers, creating a constant sensation that your fingers are being drawn toward your palm.^[2][3]

In the most advanced stage, called contracture, the cords tighten enough to pull one or more fingers into a permanently bent position toward the palm. At this point, it becomes difficult or impossible to straighten the affected fingers completely. The condition most commonly affects the ring finger (fourth finger) and pinky finger (fifth finger), though it can impact any finger, including the thumb. The middle finger is occasionally affected, while the index finger and thumb are rarely involved.^[1][2]

It is common for Dupuytren’s contracture to affect both hands, though each hand may be affected at different times and in different patterns. The condition tends to get slowly worse over many months or years.^[5]

As the contracture progresses, everyday activities can become challenging. You might find it difficult to place your hand flat on a table, which is sometimes called a positive “tabletop test.” Simple tasks like putting on gloves, washing your hands, placing your hands in your pockets, shaking hands, holding large objects, typing, buttoning clothes, or gripping utensils can become awkward or impossible. For people who play sports or musical instruments, the condition can interfere with their ability to grip equipment properly.^[4][6]

Prevention

Because Dupuytren’s contracture is primarily a genetic condition, there is no guaranteed way to prevent it from developing if you have inherited the genetic predisposition. However, understanding your risk factors and making certain lifestyle choices may help reduce your risk or slow the condition’s progression.^[2]

If you have risk factors such as Northern European ancestry or a family history of the condition, being aware of early signs is important. Check your hands regularly for the development of nodules or changes in the palm’s appearance. Early detection allows for earlier intervention if treatment becomes necessary.^[8]

Managing related health conditions may be beneficial. If you have diabetes, maintaining good blood sugar control is important for overall health and may help reduce complications. Similarly, managing seizure disorders with appropriate medication and medical supervision is essential.^[2]

Lifestyle modifications related to alcohol and tobacco use may also be helpful. Reducing or eliminating alcohol consumption and quitting smoking are generally beneficial health choices that may decrease risk, as both smoking and alcohol use have been associated with Dupuytren’s contracture.^[6]

While there are no specific supplements or vaccinations that prevent Dupuytren’s contracture, maintaining overall hand health through regular use and gentle stretching exercises may help maintain flexibility. However, there is no proven screening test for the condition, so vigilance about symptoms is the best approach for early detection.^[6]

Pathophysiology

Understanding what happens inside the hand during Dupuytren’s contracture helps explain why symptoms develop and progress. The disease involves complex changes in the normal structure and function of hand tissues.^[3]

In a healthy hand, the palmar fascia serves as a supportive layer of connective tissue. This fascia lies between the skin of your palm and the deeper structures like tendons, nerves, blood vessels, and bones. It helps anchor and stabilize the skin, preventing it from moving too freely. Without this fascia, the skin on your palm would be as loose and moveable as the skin on the back of your hand.^[3]

In Dupuytren’s contracture, abnormal changes begin at the cellular and molecular level. The fascia starts producing excessive amounts of collagen, a structural protein that normally provides strength and structure to connective tissues throughout the body. This collagen buildup is not like scar tissue from an injury, but rather an active disease process driven by cells in the fascia.^[7]

As collagen accumulates, the fascia gradually thickens. Initially, this thickening creates the nodules you can feel or see in the palm. These nodules represent areas where collagen deposition is most active. The process continues as the disease progresses, with the nodules potentially developing into thick, cord-like structures. These cords are static and do not move like tendons, which are connected to muscles that can shorten and lengthen. Instead, the cords in Dupuytren’s contracture remain fixed and may gradually shorten over time.^[6]

As the cords contract and shorten, they exert mechanical force on the fingers, physically pulling them toward the palm. This tethering effect prevents the fingers from straightening completely. The joints most commonly affected are the metacarpophalangeal (MP) joint at the base of the finger where it meets the palm, and the proximal interphalangeal (PIP) joint in the middle of the finger.^[7]

Research has identified specific molecular signals involved in this process. One important factor is tumor necrosis factor (TNF), a molecule that plays a role in inflammation and tissue remodeling. Studies have shown that TNF may be a target for treatment approaches aimed at slowing or stopping the disease process in its early stages.^[11]

The underlying tendons, nerves, and blood vessels are not directly affected by Dupuytren’s contracture. However, the contracted position of the fingers over time can lead to joint stiffness and reduced flexibility. If the joints remain in a bent position for years without treatment, they may develop secondary arthritis or permanent stiffness even if the contracture is later corrected.^[3]

People with more severe forms of the disease may develop what is called Dupuytren’s diathesis. This term describes cases where the disease is more aggressive, appears at a younger age, affects multiple fingers or both hands, and may be accompanied by similar conditions in other parts of the body, such as knuckle pads (thickening on top of the knuckles), plantar fibromatosis in the feet, or Peyronie’s disease. These individuals are at higher risk for rapid progression and recurrence after treatment.^[6]