Print OverviewTrigger finger makes a finger get stuck in a bent position. It may straighten suddenly with a snap. The fingers most often affected are the ring finger and the thumb, but the condition can affect any finger. Trigger finger happens when the tendon that controls that finger can't glide smoothly in the sheath that surrounds it. This may occur if part of the tendon sheath becomes swollen or if a small lump forms on the tendon. The condition is most common in women over the age of 50. You may be at higher risk of trigger finger if you have diabetes, low thyroid function or rheumatoid arthritis. Treatment of trigger finger can include splinting, steroid injections or surgery.Products & ServicesA Book: Mayo Clinic Family Health BookAssortment of Products for Daily Living from Mayo Clinic StoreMayo Clinic Sports MedicineNewsletter: Mayo Clinic Health Letter — Digital EditionShow more products from Mayo Clinic SymptomsSymptoms of trigger finger may progress from mild to severe and include: Finger stiffness, particularly in the morning. A popping or clicking sensation as the finger moves. Tenderness or a bump in the palm at the base of the affected finger. Finger catching or locking in a bent position, which suddenly pops straight. Finger locked in a bent position. Trigger finger can affect any finger, including the thumb. More than one finger may be affected at a time, and both hands might be involved. Triggering is usually worse in the morning. Request an appointment There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form. From Mayo Clinic to your inbox Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview. Email Address 1 ErrorEmail field is required ErrorInclude a valid email address Learn more about Mayo Clinic’s use of data. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail. Subscribe! Thank you for subscribing! You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry Causes Trigger finger Enlarge image Close Trigger finger Trigger finger Trigger finger happens when the tendon that controls that finger can't glide smoothly in the sheath that surrounds it. This may occur if part of the tendon sheath becomes swollen or if a small lump forms. This lump is called a nodule. Tendons are tough cords that attach muscle to bone. Each tendon is surrounded by a protective sheath. Trigger finger occurs when the affected finger's tendon sheath becomes irritated and swollen. This makes it harder for the tendon to glide through the sheath. In most people, there's no explanation for why this irritation and swelling begins. The constant back-and-forth irritation can cause a small lump of tissue to form on the tendon. This lump is called a nodule. The nodule can make it even harder for the tendon to glide smoothly. Risk factorsFactors that put you at risk of developing trigger finger include: Repeated gripping. Occupations and hobbies that involve repetitive hand use and prolonged gripping may increase the risk of trigger finger. Certain health problems. People who have diabetes or rheumatoid arthritis are at higher risk of developing trigger finger. Your sex. Trigger finger is more common in women. ComplicationsTrigger finger can make it harder to type, button a shirt or insert a key into a lock. It also can affect your ability to grip a steering wheel or grasp tools. By Mayo Clinic Staff Trigger finger care at Mayo Clinic Request an appointment Diagnosis & treatment Dec. 03, 2022 Print Show references Frontera WR, et al., eds. Trigger finger. In: Essentials of Physical Medicine and Rehabilitation: Musculoskeletal Disorders, Pain, and Rehabilitation. 4th ed. Elsevier; 2019. https://www.clinicalkey.com. Accessed Oct. 17, 2022. Ferri FF. Trigger finger. In: Ferri's Clinical Advisor 2023. Elsevier; 2023. https://www.clinicalkey.com. Accessed Oct. 17, 2022. Blazar PE, et al. Trigger finger (stenosing flexor tenosynovitis). https://www.uptodate.com/contents/search. Accessed Oct. 17, 2022. AskMayoExpert. Trigger digits (finger, thumb) (adult). Mayo Clinic; 2021. Trigger finger. American Academy of Orthopaedic Surgeons. https://orthoinfo.aaos.org/en/diseases--conditions/trigger-finger. Accessed Oct. 17, 2022. Gil JA, et al. Current concepts in the management of trigger finger in adults. Journal of the American Academy of Orthopaedic Surgeons. 2020; doi:10.5435/JAAOS-D-19-00614. Ami TR. Allscripts EPSi. Mayo Clinic. Oct. 4, 2022. Related Trigger finger News from Mayo Clinic What triggers trigger finger? Dec. 07, 2022, 03:39 p.m. CDT Products & Services A Book: Mayo Clinic Family Health Book Assortment of Products for Daily Living from Mayo Clinic Store Mayo Clinic Sports Medicine Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Trigger fingerSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. 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There is a problem with information submitted for this request. Review/update the information highlighted below and resubmit the form. From Mayo Clinic to your inbox Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview. Email Address 1 ErrorEmail field is required ErrorInclude a valid email address Learn more about Mayo Clinic’s use of data. To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail. Subscribe! Thank you for subscribing! You'll soon start receiving the latest Mayo Clinic health information you requested in your inbox. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry