3 summertime tips for site management

Woman on the beach with CGM and infusion sets on arms

Summertime often means higher temps, humidity, and water activities, all of which can make it trickier to get your continuous glucose monitor (CGM) and infusion set to stick.Try not to sweat it. 😊 If you find that it’s harder to keep your glucose sensor or infusion set in place during the summer months, here are a few things you can do that may help.

1. Proper site insertion is key 

  • Make sure you insert your sensors and infusion sets in their approved locations:
    • For the  Guardian™ 4 sensor, place on the back of the upper arm.
    • For the Guardian™ Sensor 3, ages 7-13 should place on the back of the upper arm or buttocks, and ages 14+ should stick to the abdomen or upper arm. For your infusion set, insert on abdomen, thighs, or buttocks.
  • Select a spot that is flat, doesn’t have scar tissue, and won’t interfere with summer clothing, which will help keep your site secure.

2. Secure your site

  • Before insertion, avoid using lotions, creams, or aerosols (like spray-on sunscreen) that may make it harder for the adhesive to stick. Instead, apply them after insertion and taping are done.
  • Prepare your site with alcohol to prevent infection and help the adhesive better stick to your skin. You may also consider using a prep wipe around your site area to help your infusion set adhere better. Just make sure to let the area dry completely before inserting.
  • After insertion, when removing the needle from the sensor or infusion set, make sure to hold the site down with two fingers to make sure it stays in place.

3. Consider reinforcements

  • If you’re active in different ways during summer and find that you are sweating more, or your summer clothing has your sites more exposed, you may want to consider an additional piece of overtape — especially for sensor sites.
  • For your CGM, make sure to use two pieces of Oval Tape as directed, and an additional piece of overtape can be added after as well. StayPut™ patches are one of our favorites and they even come in fun summer colors! They are available on Diabetes.shop

If you have specific questions about what may work best for you, be sure check in with your healthcare team. Check out our tape tips and site management guide for more help. Happy sites = happy summer!


[Originally published 2020-05-28. Updated 2024-05-22.]


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Submitted by Sharon Thorsen (not verified) on

In reply to by Commenter (not verified)

Cannula keeps bending after insertion. Of course I don’t know it’s bend until I see a bunch of 300 blood sugar tests

Submitted by Nicole (not verified) on

In reply to by Sharon Thorsen (not verified)

Sharon, have you been able to troubleshoot with a member of our 24-Hour Technical Support team? They'd like to help and explore your options with you. Please give our team a call at 800.646.4633 option #1.

Submitted by Karen Rogerson (not verified) on

In reply to by Sharon Thorsen (not verified)

I agree! And there is no message that the insulin flow is blocked. I have found that if it occurs with one cannula out of a box, then 80% of that entire box will do that same thing for me, almost like its a bad production lot.

Submitted by Louis (not verified) on

In reply to by Sharon Thorsen (not verified)

I faced the same issue 2 years back with the Sihouette canula. The plastic was bending due to movement and pressure from the muscles. The ideal fix would be for Medtronics to have a type of canula with more than one hole for ensuring insulin distribution no matter what.

The only way I have been able to fix this issue in working with the Medtronis supprt nurse is by switching to a sure-T infusion set which has a straight insertion and is in metal so it never bends. the placement is however trickier so that it does not hit a muscle but at least the canula never gets damaged internally.

This is an area of research that would make huge differences.

Submitted by Reba (not verified) on

In reply to by Louis (not verified)

I rarely go to the beach because I don't know what to do with my pump. We usually get a place right on the beach so I simply leave it in the room and run in from time to time to check on things. However, this year, the condo we rented is about a mile away from the beach so that doesn't seem like a solution. Add to this the fact that I just got the CGM. and would like to keep it nearby. Also, when I'm at the pool at the gym, is there a way I can keep the CGM within ear shot while I'm swimming?

Submitted by Lisa Lollar (not verified) on

In reply to by Commenter (not verified)

I have a new pump, mini med 670G, it need a clip that rotates on your body.. For sleeping, exercising.. You wake up with a indentation on your body or a bruise from it...LL

Submitted by Nicole (not verified) on

In reply to by Lisa Lollar (not verified)

Sorry to hear that, Lisa. Have you checked out our other accessories that may work better for you? If not, you can explore your options here: http://bit.ly/1OwQzAO

Submitted by Deborah (not verified) on

In reply to by Lisa Lollar (not verified)

I wear an old leather belt around my waist very loosely. That way, when I turn over it spins around me. I also have used a spandex money belt. It holds it in place with no marks or bruises.

Submitted by Steven Rubenstein (not verified) on

In reply to by Commenter (not verified)

I was having the same problem, so I went to the sure T. Now I don’t have that problem anymore. Sometimes absorption isn’t good, but that’s about it. Unless I eat bad for the evening that is.

Submitted by Wayne Curtis (not verified) on

In reply to by Steven Rubenstein (not verified)

The 670G has the most advanced technology on the market. The programming, ease of use, is the worst !

Submitted by Lalit Chaloo (not verified) on

In reply to by Commenter (not verified)

Hi Naomi,

All the insertions leave a mark on my skin and they never seem to go away. Please advise what can I do to lighten these marks.

Both the infusion set and sensor leave a mark.


Submitted by Nicole (not verified) on

In reply to by Lalit Chaloo (not verified)

Hi there, Lalit. This is a good conversation to have with your healthcare provider. They can make the best recommendations and suggestions based on your individual needs.

My clip keeps breaking and im forcced to wear clothes with pockets !? Pretty annoying ! Does medtronic have any suggestions ? Besides me a customer paying monry for a clip every month? Mini Med 670 G

I'm sorry to hear about your belt clip, Dolores. Our 24-Hour Technical Support team may have suggestions that can help and can also provide a complimentary replacement. Please give them a call at your convenience at 800.646.4633, option 1.

Submitted by Michael Askin (not verified) on

In reply to by Commenter (not verified)

Thanks for the article, I have lost several sensors due to this issue of high humidity and sweat. And since they are limited supplies had to go without for several days to a week.

Submitted by Nicole (not verified) on

In reply to by Michael Askin (not verified)

Michael, I'm sorry to hear about your sensors, but glad you found the article helpful. Have you spoken with our 24-Hour Technical Support team about your concerns? They can discuss taping techniques and if applicable, send you a courtesy replacement sensor. Feel free to give them a call at your convenience at 800.646.4633, option 1.

Submitted by Kathy Kluckman (not verified) on

In reply to by Commenter (not verified)

I am having a problem with my meter syncing with my pump. How can I fix that?

Submitted by Nicole (not verified) on

In reply to by Kathy Kluckman (not verified)

I'm sorry to hear this, Kathy. Our technical support team can help with this. Please give them a call at your convenience at 800.646.4633, option 1.

Submitted by Roger Clark (not verified) on

In reply to by Commenter (not verified)

In the summer I sweat a lot. So I stick to my infusion site’s at my rump and thigh.

Submitted by Jerome Smith (not verified) on

In reply to by Commenter (not verified)

I have been a type 1 diabetic for 47 years over the past 10 years or so I have used Medtronic. Only twice have I had a problem with lose of flow once I nicked the tube with a seatbelt and once I didn’t realize that my insertion had come lose. I am an extremely active person but I am always aware that I have extra parts that may need attention. Yes my CGM and my insertion site have come off I was swimming in Crystal Lake and lost my sensor a few years ago but before I was out of the water I knew it was gone. My whole family spent hours combining the bottom of the lake where I was swimming but came up empty. The point of this is we must must be aware of our devices all of the time. These sensors and cannulas keep us going as any other human and if you want to live a normal life pay attention. I pay attention and have more fun then the average person
Loving Life

Submitted by Carol Torpey (not verified) on

In reply to by Commenter (not verified)

All I see are solutions that we must pay for - Skin Tac, ST Removal Wipes…. & they still don’t always work (high humidity… If these things are needed to use Medtronic products, they should be provided by Medtronic or insurance. Been on golf driving range several times to look down & see my sensor/transmitter on the ground even with extra tape & adhesives. Quik set come loose halfway through round even with extra tape/adhesives…. Then there are all the unnecessary BG readings called for during night even when BG readings have been in line. Turned that notification off for BG readings so after I have calibrated 10 pmish before bed it wakes me up at 6:30 for BG or leave auto mode. Or I calibrate @ some time when told to do so (not the time per instructions). I calibrate & 10 min later it wants a BG. Didn’t I just give it one with the calibration?!!! Recently got email to review 770 system. I deleted it. This is my review of it now. it’s better than dealing with injections from long term & fast acting insulin. ( I may expect too much. I have a disease. This is just a tool. Not a cure, but doesn’t live up to hype when I got it)And I feel lost when waiting for new sensor to calibrate. And that takes at least a day to get in line. An extra charged transmitter already charged would help. But that would still not solve the above problems. The system seems to work best when you are being the diabetes poster child, but has problems handling variances. But also struggles with the norm.

I do a lot of swimming and yard work I take it the pump doesn't stay on very well.

Submitted by Loretta Levas-Taylor (not verified) on

In reply to by Commenter (not verified)

I frequently hit veins/capillaries when I insert new sensors, esp in warm summer months. I’ve tried icing the site prior, as well as changing sites to thigh or hip. Any thoughts on how to be more successful?

Submitted by Kathleen Rosson (not verified) on

In reply to by Commenter (not verified)

I’m a 73 year old type 1 diabetic. I’m also very active. Went paddle boarding at Mount Hood National Forest last week and I swim in the ocean on a weekly basis. I simply clip my portal for insulin and leave the pump with my belongings. My CGM stays dry because I use “Skin Grip” patches sold on Amazon. I ski in the winter and during these times I do stop my Basal Insulin so my glucose doesn’t drop.
Your pump is part of you and yes, the CGM is a pain in the bum, but it all works and it is keeping us alive. Since I started the Medtronic’s CGM, my A1C dropped from 8.6 to 7.3. We just have to use our common sense and enjoy life. I’ve lost 4 family members to Type 1 Diabetes and I’m not going to be the 5th.

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