How To Keep Hearing Aids From Falling Out: An Audiologist's Retention Guide

Proper hearing aid retention depends on matching device geometry to ear anatomy, optimizing dome or earmold sizing, and integrating mechanical accessories like sport locks or skin adhesives. Physical displacement usually stems from jaw movement, moisture, or incorrect acoustic coupling dimensions. Correcting these factors stabilizes the device flush against the concha bowl and ear canal for all-day comfort and security.

Pre-Fit Assessment and Equipment Checklist

Before modifying your hearing aid setup, you must evaluate the anatomical factors driving physical displacement. The ear canal is dynamic; actions like chewing, yawning, and talking alter its shape via movement of the temporomandibular joint (TMJ). Additionally, skin oil, perspiration, and cerumen (earwax) act as lubricants that degrade physical friction. Identifying the specific style of your hearing instrument—whether Receiver-in-Canal (RIC), Behind-the-Ear (BTE), or In-the-Ear (ITE)—determines which retention accessories and adjustments will work best.

Essential Retention Gear and Supplies

• Sport Locks / Retention Tails: Monofilament plastic strands (typically 0.035 to 0.045 inches in diameter) that attach to the receiver head and curl into the lower concha bowl.
• Sizing Variety Pack of Domes: Open, closed, power, and tulip silicone domes ranging in diameter from 6 mm to 12 mm.
• Medical-Grade Hypoallergenic Adhesive: Double-sided skin tape (toupee or body tape) or skin-safe friction gels designed for sensitive epithelial tissue.
• Retention Lanyards and Eyeglass Clips: Elastic cord systems with silicone collar rings designed for active environments or high-risk movement.
• Hygiene Prep Kit: Alcohol wipes, microfiber cloths, and cerumen removal tools to eliminate oil and wax buildup prior to insertion.

Prerequisites and Standards

• Ear Canal Inspection: Ensure the canal is free of impacted cerumen, which forces domes outward.
• Tubing and Wire Integrity: Verify that thin tubes or RIC receiver wires are not bent, brittle, or twisted out of shape.
• Anatomical Baseline: Confirm whether your ear canal is unusually straight, narrow, or sharply angled, which may require specialized solutions.

Benchmark Expectations

• Home Adjustment Duration: 10 to 15 minutes for basic accessory attachment and dome swaps.
• Custom Fitting Timeline: 1 to 2 weeks if an audiologist needs to take ear impressions for custom earmolds.
• Accessory Budget: $5 to $35 for DIY retention aids; $50 to $150 for custom silicone or acrylic earmold remakes.

Step-by-Step Protocol to Prevent Hearing Aid Slippage

Step 1: Clean and Prepare the Ear and Device

Oil and moisture reduce the friction required to hold silicone domes and acrylic shells in place. Clean the outer ear (pinna), concha bowl, and ear canal entrance daily using a warm, damp cloth or dry tissue. Avoid leaving soap residue behind. Inspect the hearing aid dome or custom shell for oil film or earwax buildup. Clean silicone domes with an alcohol-free cleaning wipe, and clear the wax guard using a dedicated brush to prevent physical blockages that force the device outward.

Pro-Tip: Clean your ears and devices at night rather than in the morning. This gives skin oils time to balance out and keeps moisture from getting trapped under fresh silicone fittings.

Step 2: Master the Anatomical Insertion Technique

Improper insertion is the leading cause of loose hearing aids. When inserting a BTE or RIC device, rest the main body behind the top of your ear pinna first. Use your opposite hand to reach over your head and pull your outer ear gently upward and backward (for adults). This maneuver straightens the ear canal S-curve. Push the dome or mold into the canal opening using a slight twisting motion until it sits firmly and comfortably. For ITE models, rotate the shell backward into the concha bowl until the tragus overlaps the front edge of the instrument.

Warning: Never force a dome or custom shell into the canal if you feel sharp pain. Resistance usually means the insertion angle is off, the dome size is too large, or an ear canal abrasion is present.

Step 3: Install and Position a Sport Lock (Concha Lock)

A sport lock is a thin, flexible monofilament tail attached to the speaker housing of a RIC hearing aid. If your wire lacks a sport lock, push the mounting ring of the lock over the receiver body before attaching the silicone dome. Once the dome is anchored inside the ear canal, use your index finger to press the tail down into the lower curve of your ear (the concha bowl). The natural spring tension of the curved plastic pushes back against the inside of your ear, keeping the speaker firmly in place even during heavy jaw movement.

+---------------------------------------------------------------+ | RIC RETENTION LOCK | | | | [ BTE Housing ] | | \ | | \-- Wire | | \ | | [Receiver]----===( Sport Lock / Concha Tail ) | | | (Curls in Concha) | | [Dome] | | | | | (Ear Canal) | +---------------------------------------------------------------+

Step 4: Optimize Dome Sizing and Geometry

Standard domes come in three primary configurations: open, closed, and power (double-flange). If your hearing aid backs out repeatedly, your current dome diameter is likely either too small (causing it to float loosely) or too large (causing elastic recoil that pushes the dome out). Switch your dome size up or down by 1 to 2 millimeters. If standard round domes back out during speech, test a tulip dome design, which features overlapping petals that expand and contract with the movement of your jaw.

Step 5: Upgrade Receiver Wire Length or Tubing Size

If the RIC wire or BTE thin tube is too short, it puts constant upward tension on the canal portion, pulling it out every time you open your mouth. If the wire is too long, it bows outward from the side of your head and catches on clothing, glasses, or hair. Ask your hearing healthcare provider to measure your ear using an arch-gauge. Replacing a Size 2 wire with a Size 3 wire provides extra slack, letting the dome sit securely in the canal without popping out.

Step 6: Apply Secondary Retention Accessories for Active Use

For intense exercise, outdoor sports, or high-humidity environments, add external anchor systems. Cut a small 0.5-inch strip of medical-grade double-sided wig tape and apply it to the casing of a BTE aid where it rests against the skin behind the pinna. Alternatively, slide a silicone eyeglass connector strap over the hearing aid bodies and clip the center lanyard to your shirt collar. This prevents the device from falling onto the ground if it slips off during high-impact movement.

Retention Accessory Performance and Technical Specifications

Selecting the correct retention method requires balancing retention force, comfort, and anatomical fit. The table below compares common methods used to secure hearing aids.

Common Retention Failures and Field Remedies

Issue 1: Hearing Aid Backs Out Constantly During Eating or Talking

• Root Cause: The temporomandibular joint (TMJ) pushes against the anterior wall of the ear canal during chewing or speaking. Rigid domes or shallow custom shells get squeezed out of the canal by this dynamic movement.
• Actionable Fix: Replace rigid or oversized domes with flexible tulip domes that adjust to shape changes. If using a custom earmold, ask your audiologist to remake the impression while you hold your mouth open with a 1-inch bite block. This captures the canal in its expanded state, preventing TMJ displacement.

Issue 2: RIC Speaker Wire Bows Outward away from the Head

• Root Cause: The receiver wire has a lateral memory bend, or the wire length is too long for the user's pinna height, lifting the hearing aid off the ear.
• Actionable Fix: Have your clinician carefully re-shape the wire using a warm-air duct bender to increase its inward curvature toward the temporal bone. If the wire length is incorrect, resize the receiver assembly down one length setting.

Issue 3: Device Slips Out Due to Heavy Sweat and Oil Build-Up

• Root Cause: Perspiration destroys the friction between the silicone dome or acrylic mold and the canal wall, turning sweat into a lubricant.
• Actionable Fix: Apply an anti-perspirant skin prep wipe to the skin behind the pinna (avoiding the ear canal opening) before putting on the device. Switch to a soft, high-friction silicone custom earmold instead of smooth acrylic, and slide a moisture-wicking neoprene sleeve over the behind-the-ear housing.

Issue 4: Dome Remains Trapped in Canal While Hearing Aid Wire Pulls Free

• Root Cause: The silicone dome interface has stretched out or torn, losing its friction fit on the receiver nozzle stem.
• Actionable Fix: Immediately stop reattaching old domes. Replace silicone domes every 30 to 60 days. Always verify that the inner sound-bore ring of the dome clicks securely into the retaining notch on the receiver stem before placing it in your ear.

Frequently Asked Questions

Why does my hearing aid keep slipping out of my ear?

Hearing aids usually slip out because of incorrect dome sizing, earwax accumulation, oily skin, or dynamic motion from your jaw while talking or chewing. If the dome is too large, canal spring-tension pushes it back out; if it is too small, it lacks the friction needed to stay anchored.

Can I use tape or glue to hold my hearing aid in place?

You can use medical-grade, hypoallergenic double-sided skin tape (such as toupee or body tape) on the plastic housing behind your ear pinna. Never apply liquid glues, household tapes, or adhesives directly inside your ear canal or onto the acoustic ports of your hearing aid.

How do I know if my hearing aid dome is too big or too small?

A dome that is too big will feel like it is stretching your ear canal, cause physical soreness, and constantly back out toward the outer ear. A dome that is too small will feel loose, slip out with minimal movement, and cause high-pitched whistling (acoustic feedback) due to sound leaking out around the edges.

Will a custom earmold stop my hearing aid from falling out?

Yes. A custom earmold made from a physical impression or 3D optical scan of your ear canal provides the highest level of retention. Custom silicone or acrylic molds fit every contour of your unique ear geometry, eliminating slippage caused by standard off-the-shelf domes.

Is it safe to wear a sport lock on my hearing aid all day?

Yes. Sport locks are made from smooth, biocompatible monofilament plastic designed for continuous contact with the ear. They lie comfortably in the concha bowl and provide gentle pressure to anchor the device without irritating delicate skin tissue.

Secure Your Hearing Instrument Investment

If DIY adjustments and sport locks do not solve your fit issues, a professional evaluation can help resolve complex ear geometry challenges. Contact a licensed audiologist or hearing instrument specialist to schedule a custom ear impression, wire-length check, or dynamic fit analysis today.