Intersection syndrome is inflamed tendons 4 to 8 cm above the wrist on the back of the forearm, often with a squeak you can feel. Most settle in 2 to 6 weeks with a splint and a change of load.
Kienböck’s disease is the lunate, a small central wrist bone, losing its blood supply and collapsing, usually in a 20 to 40 year old with no injury. Early X-rays are often normal; an MRI finds it, and the stage decides whether the bone can still be saved.
Gymnast’s wrist is a stress injury to the radius growth plate from weight-bearing on bent-back wrists. It needs a full stop on hand weight-bearing for at least 4 to 6 weeks, often 3 months if the X-ray has changed, then a staged return.
Little league elbow is growth plate irritation on the inner elbow of a young thrower, and most children are back throwing in 6 to 12 weeks if it’s caught early. Outer elbow pain, catching or a sudden pop needs a doctor, not rest.
Radial tunnel syndrome is a squeezed nerve below the outer elbow that causes deep forearm aching without numbness, tender four finger-widths below the bony point. Most cases settle in 3 to 6 months with load changes, a night splint and nerve gliding.
Pronator teres syndrome is the median nerve squeezed in the upper forearm instead of the wrist: same tingling fingers, but the palm goes numb too and it rarely wakes you. Most cases settle in 6 to 12 weeks with load change, a night splint and nerve glides.
Arm pump that hits at the same point every session and clears within minutes of stopping is a compartment pattern; soreness the next day is overload. Most gripping forearm pain settles in 6 to 12 weeks with a lighter grip, varied positions and graded training.
Numb hands on the bike are a nerve squashed at the wrist: ring and little finger is the ulnar nerve (handlebar palsy), thumb to middle finger is carpal tunnel. Change hand position every 10 to 15 minutes, get weight off your hands, and treat numbness that lingers after the ride as a deadline.
A soft lump on the point of the elbow is usually olecranon bursitis and settles in 2 to 6 weeks once you stop leaning on it. Hot, red, painful, or a break in the skin means infection until proven otherwise: get seen today.
Guyon’s canal syndrome is the ulnar nerve squeezed at the wrist: numb ring and little fingers with a normal back of the hand. Pressure cases usually settle in 6 to 12 weeks once the load comes off; a cyst or hamate fracture needs finding and usually surgery.