Where Are The Supratrochlear Lymph Nodes Located? | At Elbow

If you’re trying to find the supratrochlear lymph nodes, you’re in the right place. These nodes are small, they’re easy to miss, and they’re tucked into a spot most people don’t check until a sore lump shows up.

This article shows the landmarks you can feel, what tissues drain into this node group, and a gentle self-check. It also lists signs that call for a clinician visit.

What These Nodes Are And Why The Body Has Them

Lymph nodes are small filters placed along lymph vessels. They screen lymph fluid that collects from tissues, then moves back toward the bloodstream. When germs, inflamed skin, or other irritants are present upstream, nearby nodes can swell or get tender as immune cells gather.

The supratrochlear nodes are part of the upper limb’s superficial lymph network. “Superficial” means many of the lymph vessels run close to the skin, often tracking beside surface veins. That detail matters in the elbow region because anatomy descriptions often place these nodes in relation to the basilic vein.

Most people have one or two supratrochlear nodes on each arm. Some people have nodes that stay too small to feel during routine checks. That can be normal. A node that becomes easy to feel is often reacting to something, even if the trigger is small and already healing.

Supratrochlear Lymph Node Location Near The Inner Elbow

The classic spot is on the medial side of the elbow. In plain terms: the inside edge of your elbow, not the outside. These nodes sit a short distance above the medial epicondyle of the humerus, which is the bony knob you can feel on the inside of the elbow.

They’re also described as lying close to the basilic vein, a surface vein on the inner forearm and arm. Some anatomy papers place nodes 1–2 cm above the medial epicondyle and just behind that vein.

Three Landmarks That Make The Spot Easy To Find

You don’t need fancy anatomy language to get oriented. Use these three landmarks:

• Medial epicondyle: the inner bony knob at the elbow.
• Elbow crease: the fold on the front of the elbow when you bend it.
• Inner-arm soft tissue: the squishy area just above the medial epicondyle, between the biceps and triceps borders.

To aim your fingers, start on the medial epicondyle. Slide a little higher, staying on the inner arm side. Keep your fingertips in soft tissue, not on bone. If a supratrochlear node is enlarged, that small zone is where it’s most often found.

What “Just Above The Elbow” Means In Real Life

“Above” in anatomy means closer to the shoulder, not floating in the air. So “above the medial epicondyle” means you move up the arm, not down the forearm.

Put your index finger on the medial epicondyle, then place your middle finger just above it. The target zone is where that middle finger lands in soft tissue.

Supratrochlear Vs Epitrochlear: The Name Issue

You may hear “supratrochlear,” “epitrochlear,” and “cubital” used interchangeably. In exams, “epitrochlear” often refers to this same inner-elbow station.

What Drains Into The Supratrochlear Area

Location makes more sense once you know what feeds this node group. The supratrochlear station receives lymph from parts of the hand and forearm, often linked with the ulnar side of the hand and the medial forearm skin. That’s the side where your ring and little finger sit.

So if a supratrochlear node is tender, clinicians often scan the skin upstream: small cuts, nail infections, insect bites, or a patch of inflamed skin on that side of the hand or forearm. A tiny wound can be enough to stir up an immune reaction.

Where The Lymph Goes After This Node

Lymph doesn’t stop at the inner elbow. Vessels leaving the supratrochlear area continue up the arm and link into deeper channels that run toward axillary nodes in the armpit. That “inner elbow to armpit” connection is one reason a full arm exam may include checking more than one node station.

Upper-Limb Node Station	Where You Find It	Main Drainage Area
Supratrochlear (Epitrochlear)	Inner elbow, just above medial epicondyle	Ulnar-side hand and medial forearm skin
Deep Cubital	Near elbow crease, deeper along vessels	Deep forearm structures
Deltopectoral	Front shoulder groove near collarbone	Outer arm and shoulder skin
Humeral Axillary	Along inner upper arm near the armpit	Most lymph leaving the arm
Central Axillary	Center of the armpit fat pad	Receives from other axillary groups
Apical Axillary	Top of armpit near the first rib area	Final axillary station before the trunk
Supraclavicular	Above the collarbone in the lower neck	Drainage from chest and neck regions
Cervical Chains	Along the neck and under the jaw	Head and neck tissues

If you want a plain-language definition of a lymph node, the National Cancer Institute definition gives a short description of what nodes do.

If you want the research-style anatomy wording for the medial elbow node station, see PubMed Central: Soft Tissue Masses Of The Epitrochlear Region.

How Clinicians Check This Node Station

If you’ve ever had a careful physical exam, you may remember a clinician checking your neck and armpits. The inner elbow is part of many standard lymph node checks too, even if it gets skipped in rushed visits.

Clinical skills teaching sites describe the epitrochlear area as a place to palpate with light fingertip motion, not a hard poke. Stanford Medicine 25’s lymph node exam page shows how this station fits into a head-to-toe exam flow.

A Gentle Self-Check You Can Do In 30 Seconds

A self-check can help you describe what you’re feeling, yet it can’t replace a medical exam. If you want to check anyway, keep it light:

1. Rest your forearm. Place your forearm on a table, palm up, elbow slightly bent.
2. Find the medial epicondyle. Touch the inner bony knob.
3. Move just above it. Slide 1–2 cm up the arm into soft tissue.
4. Use small circles. Two fingertips, slow circles, light pressure.
5. Compare sides. Same spot on the other arm, same pressure.

If you press hard, normal tissue can feel lumpy. If you check ten times a day, you can irritate the area and add tenderness that wasn’t there. One gentle check, then let the tissue rest.

What A Reactive Node Often Feels Like

When a node is reacting to a local trigger, it often feels like a small oval bead under the skin. It may be tender. It often moves a little when you slide your fingers over it. In many people, the node shrinks as the upstream skin issue settles.

For a broad overview of causes and warning signs tied to swollen nodes, MedlinePlus on swollen lymph nodes is a solid starting point.

Pattern	What It Often Points To	What Clinicians Commonly Check
Tender inner-elbow node after a new cut or bite	Local skin irritation or infection	Skin of hand/forearm, signs of local infection
Node with redness and warm skin over it	Inflamed tissue near the node	Spread of redness, abscess signs, fever history
Firm node that stays for weeks	Ongoing immune stimulation	Full node check, basic blood tests, trend over time
Several swollen node regions	System-wide illness	Head-to-toe node check, symptom review, targeted labs
Hard, fixed lump with other symptoms	Needs prompt medical workup	Full exam, imaging, referral if needed
Swelling with night sweats or weight loss	Warrants medical review	Broader history, labs, imaging based on findings

When A Lump Near The Inner Elbow Needs Medical Attention

A lump in this area can be a lymph node, a cyst, a vein issue, a tendon knot, or another soft-tissue bump. If it’s new and you’re unsure what it is, a clinician can check it in a short visit and plan next steps.

Swollen lymph nodes can show up fast and hurt with infection. Slower, painless swelling can have other causes and still deserves a check if it stays.

Signs That Call For A Prompt Visit

• The lump keeps growing over days or weeks.
• The lump feels hard and stuck in place.
• You notice swollen nodes in more than one body region.
• You have ongoing fever, night sweats, or unexplained weight loss.
• There is spreading redness up the arm, severe pain, or you feel acutely unwell.

Signs That Still Fit A Common Reactive Pattern

Many inner-elbow nodes swell due to a local trigger on the same arm. This pattern is common when you can point to a skin issue upstream and the lump shrinks as the skin heals. Still, if you’re unsure, it’s worth getting checked.

What To Do While You’re Watching It

If you’ve found a small tender lump and you feel well otherwise, a short watch-and-note period can be reasonable. Keep it simple and gentle.

• Scan the hand and forearm. Look for a healing cut, a nail infection, a bite, or inflamed skin on that side.
• Stop repeated poking. Checking over and over can keep the area sore.
• Track change. Note the date you first felt it and whether it grows, shrinks, or stays the same.
• Check other stations once. Feel the armpit and neck for new lumps, then leave them alone unless something changes.

Location Recap

To find the supratrochlear station, go to the inside of your elbow, locate the medial epicondyle, then move a small step up the arm into soft tissue near the basilic vein line. Use light fingertip circles, compare both sides, and avoid repeated pressing.

If a lump persists, grows, feels fixed, or comes with whole-body symptoms, don’t guess. Get it checked.