Triathlon Saddle Sores: How to Prevent and Treat Them
Saddle sores are among the most common — and most uncomfortable — complaints in triathlon and cycling. The good news: most saddle sores are entirely preventable with the right kit, technique, and bike fit. Here’s how to stop them before they start, and what to do if they develop anyway.
What Causes Saddle Sores
Saddle sores develop from a combination of pressure, friction, and moisture over sustained time in the saddle. They fall into three main types: chafing (skin abrasion from rubbing), folliculitis (infected hair follicles), and pressure sores (bruising or ulcers from sustained point loading).
For triathletes, the risk is compounded by racing in a wet trisuit straight from the swim — adding moisture to an already friction-prone environment.
Prevention: Kit and Hygiene
- Chamois cream: Apply generously to the pad of your trisuit or bib shorts before every long ride. Assos Chamois Crème, Muc-Off Luxury Chamois Cream, and Squirt Anti-Chafe Cream are all effective. Apply to the chamois itself, not just your skin
- Seamless trisuits and bib shorts: Flatlock seams cause friction; seamless or bonded seams are far gentler over 2–4 hours. A quality trisuit or bib short is the single best investment against saddle sores
- Wash kit immediately: Never leave a sweaty, damp trisuit sitting — bacteria breed fast. Wash after every session
- Trim or shave: Excess hair traps moisture and bacteria. Keep the affected area clean and trimmed
- Shower promptly: Don’t sit in cycling kit for longer than necessary after training
Prevention: Bike Fit
Many chronic saddle sores stem from poor bike fit. These are the most common fit culprits:
- Saddle too high: Forces you to rock side to side as you reach for the bottom of the pedal stroke — creating friction with every pedal rotation
- Saddle nose angled up: Concentrates pressure on soft tissue; aim for level or very slightly nose-down
- Wrong saddle width: Your sit bones need to rest on the widest part of the saddle; get measured at a bike shop (usually free) before buying
- Reach too long: Forces you to shift forward on the saddle, moving your weight onto more sensitive anatomy
Treating Saddle Sores
If a saddle sore develops, rest is the most important treatment. Stop cycling until the skin has healed — riding through a developing sore will almost always make it worse and can lead to infection.
- Apply antiseptic cream (Sudocrem or a specialist product like Muc-Off Athlete Cream) to clean, dry skin twice daily
- Wear loose, breathable underwear or no underwear in recovery
- Don’t squeeze or lance folliculitis spots — this introduces additional bacteria
- If a sore is warm, visibly infected, spreading, or accompanied by fever, see a GP — you may need antibiotics
When to Seek Medical Advice
Most saddle sores resolve with 5–7 days’ rest and basic care. See a doctor if the sore shows signs of spreading infection (increasing redness, warmth, swelling beyond the original area), if there is a lump that doesn’t resolve after two weeks, or if you experience fever. Cyclists’ saddle sores can occasionally develop into cysts or abscesses that require minor surgical treatment.
