The most common reasons hearing aids slip out are moisture in the ear canal and jaw movement during talking or chewing. The good news is that almost every case of a loose hearing aid can be fixed with a simple change to the dome size, a low-cost retention accessory, or a quick adjustment from your audiologist. Here’s what actually works.
Why Hearing Aids Slip in the First Place
Sweat and natural oils make the ear canal slippery, which lets the device shift or gradually work its way out. Every time you open your jaw to talk or eat, the shape of your ear canal changes slightly. If your hearing aid fits just loosely enough, those repeated micro-movements push it outward over the course of a conversation or a meal.
Earwax buildup can also play a role. A layer of wax between the dome and the canal wall reduces friction, and it can block the dome’s vents, changing how the device sits. Cleaning your ears regularly (without cotton swabs, which push wax deeper) helps maintain a consistent fit.
Check Your Dome Size and Style
The small silicone tip that sits inside your ear canal, called a dome, comes in several sizes and shapes. Getting this right is the single biggest factor in retention. Domes generally fall into three categories:
- Open domes have large vents and feel airy. They’re great for mild high-frequency loss, but they offer the least grip inside the canal.
- Closed domes have smaller or no vents, creating a tighter seal. They stay put more reliably and deliver more amplification.
- Power domes use a double or triple flange design for the tightest seal. They’re intended for severe hearing loss but also provide the most secure fit of any dome type.
If your hearing aids keep slipping, switching from an open dome to a closed dome (or going up one size in millimeters) is often the simplest fix. Most audiologists stock a range of sizes and can swap them out in minutes during an appointment. You can also order replacement domes from your hearing aid manufacturer and change them yourself.
Consider a Custom Earmold
Standard domes are universal, meaning they come in a handful of preset sizes. A custom earmold, by contrast, is made from an impression of your actual ear canal. Because it matches your anatomy exactly, it fits like a glove and is far less likely to slip out during chewing or exercise.
Custom molds are especially helpful if your ear canal curves upward. Up-sloping canals tend to push standard domes out whenever your jaw moves. An earmold can include an extra stabilizing piece called a canal lock or helix lock, which acts like a kickstand to hold everything in position. If you’ve tried multiple dome sizes without success, a custom mold is usually the next step your audiologist will recommend.
Add a Retention Lock or Sport Lock
Retention locks are small, flexible silicone pieces that attach to the receiver wire (the thin cable running from the hearing aid into your ear). They sit in the concha bowl, the curved area just outside your ear canal opening, and act as an anchor to keep the receiver from sliding out.
Every major manufacturer makes their own version. Phonak, Oticon, Signia, Widex, and ReSound all sell retention locks (sometimes called sport locks) in packs of five or ten. They’re brand-specific because the receiver wire diameters vary, so you need the version designed for your hearing aid model. They cost a few dollars per pack and are easy to slide on at home.
Sport locks are functionally the same thing, just marketed toward active users. If your hearing aids only slip during exercise or vigorous activity, a sport lock is the most targeted fix available.
Clips, Cords, and Safety Lines
Retention accessories won’t always prevent a hearing aid from loosening, but they can stop it from hitting the ground or getting lost. A retention cord clips to the hearing aid on one end and to your collar on the other. If the device pops out, it dangles from your shirt instead of bouncing across the pavement.
Ear hooks are another option. These are thin plastic or silicone loops that fit over the top of your ear, adding a second anchor point beyond the ear canal. They’re especially popular for behind-the-ear models, where the main body of the device sits on top of the ear and can be nudged off by hats, helmets, or headphones.
Dealing With Glasses and Face Masks
Behind-the-ear hearing aids compete for the same real estate as glasses temples and mask loops. The most common problem isn’t putting everything on; it’s taking something off and accidentally flinging a hearing aid across the room.
The order you put things on matters. Put your mask on first, then your hearing aids, then your glasses. When removing, reverse the order: glasses first, then hearing aids, then mask. This layering sequence keeps the hearing aid from getting caught in an elastic loop.
If ear-loop masks are the issue, switching to a tie-behind style eliminates the conflict entirely. You can also convert a standard ear-loop mask by cutting the loops and attaching ribbons or fabric ties so the mask goes around the back of your head instead of hooking over your ears.
Solutions for Sweating and Exercise
Moisture is the enemy of both retention and electronics. Sweat loosens the fit and can eventually short out the device. Hearing aid sweat bands are fabric sleeves that wrap around the body of a behind-the-ear device. They absorb perspiration before it reaches the microphone or battery compartment, and the added friction against your skin helps the device stay put.
Users report being able to play hockey, tennis, and work outdoors in hot, humid climates without their hearing aids dying or slipping. A basic two-pack costs under $20 and is washable.
For high-impact activities, combining a sweat band with a retention lock and a safety clip gives you three layers of security: the lock holds the receiver in your canal, the sweat band grips the body of the device to your skin, and the clip catches anything that still manages to come loose.
Double-Sided Tape for Extra Grip
Skin-safe double-sided tape can anchor the body of a behind-the-ear hearing aid to the skin behind your ear. The same tapes used for wigs and toupees work well: they’re hypoallergenic, waterproof, and designed to hold against skin oils and sweat. Phonak also makes adhesive pads called Stick n’ Stay specifically for hearing devices.
Tape is a particularly useful trick for small children, who tend to grab and pull at their hearing aids. Applied between the device and the skin, the tape creates enough resistance to deter casual tugging without making the aid difficult for a parent to remove.
Keeping Hearing Aids on Children
Babies and toddlers present a unique challenge because they explore with their hands and will pull off anything they can reach. Several strategies work in combination:
- Pilot caps and headbands cover the ears and hold the devices in place. They’re washable, come in various styles (bonnets, bandanas, ear suspenders), and physically block little fingers from reaching the hearing aids.
- Double-sided tape such as wig tape or bra tape sticks the device to the skin, making it harder for a child to pull off during the early exploratory phase.
- Retention clips and cords attach the hearing aid to the child’s clothing. Products like OtoClips and Critter Clips are designed specifically for pediatric use. They won’t prevent removal, but they stop the device from disappearing into a sandbox or storm drain.
Most parents find that a headband plus a retention cord is the most practical daily combination for children under two. As kids get older and stop pulling at their ears, you can usually transition to just a retention cord as a safety net.
Ask Your Audiologist for a Wire Adjustment
The receiver wire connecting the hearing aid body to the in-ear speaker comes in set lengths. If the wire is too long, it creates slack that lets the receiver drift out of position. If it’s too short, it pulls the device forward and off your ear. Your audiologist can select the correct wire length for your anatomy, and in some cases can warm and reshape the wire to better follow the contour behind your ear. This is a quick, in-office adjustment that can make a noticeable difference in how securely everything sits.
If you’ve had your hearing aids for a while without a refit, it’s worth scheduling one. Weight changes, aging, and even gradual cartilage shifts can alter the shape of your ears enough to affect how well your current domes or molds grip.