Updated prevention tips
The Cleveland Clinic recommends lightweight, moisture-wicking fabric instead of cotton, nipple tape or bandages as a physical barrier, and petroleum jelly or anti-chafe balm before every run.
Who would have thought that one of the problems a runner has is nipple injuries? Let's get to know the sensitivity of the nipples and prevent injuries that may occur from running.

This story, Dr. Bua or Dr. Wisanu Loh Siriwat Lecturer, Department of Surgery, Siriraj Hospital The Association of Plastic Surgeons of Thailand said that he had the opportunity to take on the role of a paramedic on the field to take care of runners. with people asking for plaster
“Is it a doctor? Do you have plaster?”
“Yes. There is.”
Dr Bua bent down and picked up the plaster from his backpack. and look at that runner He looked up and saw that he was a runner. Not opening the ankle or big toe at all, but opening ... the nipple ... by calling this symptom #chafingnipple means Rub the friction until hot. Or #runnernipple which literally translates to runner's nipples. Dr. Bua has summarized 10 things you need to know about runners' nipples as follows:
10 things you need to know about runners' nipples
1. The anatomy of the nipple and areola is different from the rest of the skin.
The areola has more sensitive sebaceous glands, sweat glands, and nerves. And there are also special muscle parts. It can be stimulated to contract and expand. The tip of the nipple is where the milk ducts are, but there are no sweat glands.

2. Protruding nipples are caused by the contraction of the areola and nipple muscles.
Protruding nipples cause friction with running shirts or underwear, especially when there is sweat. The more moist the skin, the softer it becomes. The heavier the sweat-soaked shirt becomes. More nipple friction The colder the weather, the more often it occurs because the nipples become more erect (practicing in the evening may not often occur). But it usually erects in the morning because the weather is cooler)
3. Not related to breast size
Symptoms Chafing/runner nipple is most common in men. Even though men's nipples and breasts are smaller. Results from some studies found that Up to 1 in 3 people who run more than 50 kilometers per week must have experienced this, including cyclists who have also reported this
4. Initial symptoms usually sting, itch, tingle, and hurt.
Initial symptoms usually sting, itch, tingle, and hurt until eventually chafing. The abrasions where the nipples are exposed to sweat will increase the burning and itching. If left untreated until symptoms become severe, bleeding from the nipple will occur.

5. Treatment while running
If such symptoms occur, it is recommended to temporarily put a plaster on the nipples to prevent friction. Or maybe apply Vaseline In addition, taking off your running shirt is another help. Some people may use the method of piercing a hole in their shirt at the nipple. Although this is not a cure But it's about taking care of the symptoms so they don't get worse while running. You don't want to stop running because your nipples hurt. Is it true?
6. Treatment after finishing running
Anyone who has ever been there will know that What is it like to bathe and torture your nipples? It hurts and stings, so you should shower with warm water. And use mild soap. But if there is a wound on the nipple, it should be covered with a water-based plaster. or apply ointment cream Or use it to consult with a doctor about drug use. It must be treated according to the condition of the condition and prevent the condition from getting worse. It will take at least 3-5 days for new skin to form and the breast burning sensation to improve. But if there is a deep burning sensation, it may take a week for the nipple to recuperate.

7. It's better to protect your nipples than fix them.
There are many ways to protect your nipples from injury. Because of reducing the size of the nipples Or it will be difficult for the nipples to become erect. Protection is as follows.
- Apply Vaseline. or lubricating gel before running
- Apply a plaster or use a nipple shield. But the disadvantage is If you run for a long time or sweat a lot, it will fall off.
- Apply powder. Because the flour will help absorb moisture. You should not use cooling powder.
- Choose the appropriate shirt, both fabric and size. You should practice wearing it with the same shirt you will use for running.
- Weather conditions, low humidity, large distances should be careful because there are reports of symptoms occurring in people who run long distances. and those who wear clothes that are too loose
8. Field medics should carry a jar or tube of Vaseline
to assist and provide initial treatment in the event of encountering someone with runner's nipple symptoms
9. 18+ for female runners
In the case of women who have water coming out of their nipples. Either by coming out on its own or by squeezing. You should see a doctor immediately. This may be a symptom of a tumor in the milk ducts. or breast cancer Female runners should have their breasts checked every month for safety.
In addition, if women have wounds on the nipple (nipple fissure) or areola (areola ulcer) or breast skin area Even though it doesn't hurt, don't be complacent. Maybe it's not just fungus? Dermatitis Allergic rash to humidity as expected But it may be a sign of breast cancer
for those who have had breast augmentation surgery. Can run normally But be careful while swinging your arms. And it is recommended to take a break from running for at least 3-4 weeks. Before returning to running, walk lightly and gradually increase the speed. Including adding support Or a sports bra that fits snugly

10. Runners' nipples, although small, make a big deal
Although nipple problems are small, they can cause runners to DNF (Did Not Finish, literally meaning not to finish the run). Therefore, it is best to protect, smear, or paste your nipples and wear a shirt that fits well before going out for a run or to practice happily. Runners who have the same problems in the groin, inner thighs, bra straps, or armpits can use the same prevention and treatment principles.
already know this. Runners, don't forget to take care of your nipples before running.
Illustrations from the internet
Some information from Facebook. For two equal breasts by Dr Bua
Article worth reading further
Sources
Information updated 24 September 2026.
