Every hiker who spends enough time on trails will eventually bleed. A slip on rock, a thorn scramble, a tumble on scree — these are not failures of preparation but the arithmetic of terrain and time. What distinguishes an experienced hiker from a novice in these moments is not whether they get cut, but what they do in the next five minutes.

Most trail wounds are superficial — lacerations and abrasions that look dramatic immediately after the fall and become more manageable once cleaned. The principles are simple, the steps are sequential, and the first aid kit in your pack is what makes this a minor chapter rather than a story that ends a good day in the mountains.

The First Two Minutes: Stop the Bleed

Bleeding is the body’s alarm system — it looks severe even when it isn’t. Scalp and hand lacerations bleed profusely from even minor wounds because of the dense vascular supply in these areas. Most trail cuts, even dramatic-looking ones, can be controlled within two minutes of direct pressure.

Direct pressure — the only first step

Apply firm, continuous direct pressure to the wound using a clean cloth, sterile gauze or (as a last resort) clothing. Do not lift the compress to check progress within the first 2–3 minutes — lifting interrupts clot formation. If blood soaks through the initial compress, add more material on top rather than replacing it. Hold for at least 5 minutes by the clock, not by feel — it always feels longer than it is.

Elevation

If the wound is on a limb, raise it above heart level while maintaining pressure. This reduces blood pressure in the distal vessels and slows bleeding. It is not possible for every wound location — use it when you can.

Cleaning: The Step Most People Rush

Once bleeding is controlled, the wound must be cleaned. This is the most important step in preventing infection — trail wounds are contaminated with trail. Dirt, organic material and bacteria enter the wound at the moment of injury and must be mechanically removed before closure.

Irrigation

Flush the wound under pressure using clean water. The pressure is as important as the volume — a gentle pour does not remove embedded debris. Use a syringe (included in many first aid kits) or a plastic bag with a small hole punctured in it to create a pressure stream. Minimum 200ml of clean water per wound; more for heavily contaminated abrasions. Filtered or purified water is ideal; clear running stream water is an acceptable field alternative. Do not use iodine solution or hydrogen peroxide directly in the wound — these damage the tissue cells needed for healing.

Abrasion cleaning

Abrasions (graze wounds from sliding on rock or ground) are more complex to clean than clean lacerations because embedded grit must be physically removed. This is painful. A clean gauze or soft brush is used to physically scrub debris out of the wound under irrigation. Leaving grit in an abrasion causes “traumatic tattoo” — permanent grey-blue discolouration of the healed skin where carbon particles remain embedded in the dermis. Beyond aesthetics, embedded debris dramatically increases infection risk.

Closure: When and How

Wound closure strips (Steri-Strips)

For clean lacerations under 3–4cm that are not gaping — where the wound edges can be brought together without tension — closure strips are the preferred field closure method. Dry the skin around the wound (not inside it) with gauze, apply thin adhesive closure strips perpendicular to the wound at 5mm intervals, and bring the wound edges together gently without forcing them. A correctly applied closure strip holds the edges in apposition; it does not pull skin tight across the wound.

Wound closure should NOT be attempted when:

• The wound is heavily contaminated and cleaning has been inadequate — closing a contaminated wound traps infection inside
• The wound is deep, gaping or involves tissue below the skin surface
• The wound is on the face near the eye (leave to medical professionals)
• The wound has ragged or crushed edges rather than clean margins
• More than 6–8 hours have passed since injury (increased infection risk from delayed closure)

Dressing and Continuing

A clean, closed or uncloseable wound gets a sterile non-adhesive dressing (Telfa pad) held in place with medical tape or a conforming bandage. For locations where tape won’t adhere (knees, elbows, joints), a tubular elastic bandage or self-adhesive cohesive bandage holds the dressing in place during movement. Change the dressing daily or when it becomes wet, soiled or saturated.

Signs of infection to monitor

After treating a trail wound, monitor daily for the following: increasing redness that spreads beyond the wound edge, warmth in the surrounding tissue, swelling, purulent discharge (pus), red streaking from the wound edge (lymphangitis — a medical emergency), fever or systemic unwellness. Any of these signs require prompt medical attention — trail wound infections that go untreated can progress rapidly in environments where evacuation takes time.

What Goes in the Kit

A first aid kit that handles trail wounds adequately contains these specific items — not a generic pre-packaged kit that includes items you’ll never use and omits things you will:

• Sterile gauze pads (10cm x 10cm) — for initial pressure and wound packing; minimum 6
• Wound closure strips (Steri-Strips, 6mm width) — a single pack of 10 covers most field closures
• Non-adhesive dressings (Telfa pads) — for covering wounds that can’t be closed
• Medical tape (Leukopor or similar) — for holding dressings; also useful for blister management
• 10ml irrigation syringe — for pressurised wound cleaning; the single most underrated first aid item for trail wounds
• Antiseptic solution (povidone-iodine or chlorhexidine wipes) — for surrounding skin preparation, not internal wound application
• Nitrile examination gloves (2 pairs) — for treating others; your own wound doesn’t require gloves but another person’s does
• Medical scissors and tweezers — for debris removal and dressing cutting