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Clinical Signs Beginning With F

15 signs in this guide begin with the letter F. Every name links to a page explaining what the sign is, how it is elicited on examination, what a positive finding is associated with, and — for eponyms — who the sign is named after.

A B C D E F G H I J K L M N O P Q R S T U V W X Y

SignSystemA positive finding is associated with
FABER test (Patrick's test)Muscles, Bones & JointsAssociated with hip joint disease when groin pain is produced, and sacroiliac joint dysfunction when buttock pain is produced.
Facial angiofibromasSkin & NailsAssociated with tuberous sclerosis complex.
Faget signGeneral, Eyes & EarsAssociated with certain infections, classically yellow fever, and also typhoid fever, legionnaires' disease and some other intracellular infections.
Fetor hepaticusAbdomen & DigestionAssociated with advanced liver failure and portosystemic shunting of blood.
Fine hand tremorHormones & MetabolismAssociated with an overactive thyroid (thyrotoxicosis), and also with anxiety, caffeine and some medicines.
Finger clubbingChest & BreathingAssociated with lung cancer, chronic suppurative lung disease, interstitial lung disease, cyanotic heart disease and some gut and liver conditions.
Finger escape signNeurologyAssociated with cervical myelopathy affecting the intrinsic muscles of the hand.
Finkelstein's testMuscles, Bones & JointsAssociated with de Quervain's tenosynovitis — inflammation of the thumb tendon sheaths.
Fitzpatrick's sign (dimple sign)Skin & NailsAssociated with dermatofibroma, a common benign skin growth.
Fluid thrillGeneral, Eyes & EarsAssociated with a tense collection of free fluid in the abdomen (ascites).
Fothergill's signPregnancy & Women's HealthAssociated with rectus sheath haematoma, often after coughing, straining or anticoagulant treatment.
Fox's signAbdomen & DigestionAssociated with retroperitoneal haemorrhage, including from severe pancreatitis.
Frank's signHeart & CirculationAssociated in population studies with a higher likelihood of coronary artery disease, though it is common and non-specific, especially with age.
Friedreich's signHeart & CirculationAssociated with constrictive pericarditis and other states where the heart's filling is abruptly limited.
Froment's signNeurologyAssociated with ulnar nerve palsy.
Please note: This page is an educational reference about clinical examination signs. A clinical sign supports — and never replaces — a full clinical evaluation, examination and appropriate testing. A sign being present does not by itself prove a diagnosis, and an absent sign does not rule one out. If you have symptoms that worry you, see a health professional.