Babies rely on their mother's breast milk until their teeth come in, but not all mothers can provide the nutrition they need.

Breastfeeding is a different experience for every mother, and can become challenging if a mother doesn't have a lot of breast milk, suffers from an infectious disease, or is on medication.

When something is amiss, a breastfeeding mother can start to panic, wondering whether something is wrong with her or her baby.

Earlier this year, a women "nearly had a heart attack" when she noticed her breast milk went from white to pink.

While feeding her 16-month-old daughter, she was horrified to see her daughter unlatch and spit pink fluid.

She was worried blood was mixing into her milk, but it turned out the change of color was because of the large amount of beetroot she had consumed throughout the day.

Unfortunately, not all mothers have their diet to blame for their breast milk changing color.

Tanya Knox was pumping healthy breast milk until it started to turn bright red.

She knew something was wrong, and when she looked into the baby bottle, she noticed something strange...

Knox's breast milk was in fact mixed with blood, caused by a blood clot that she found in the milk bottle.

"Painful breastfeeding pic from a bad clot almost turned mastitis," she told MamaMia. "I thought it might show what can happen to our milk that nursing mums might not usually see (I exclusively pump)."

"I could feel mastitis starting to set in and my milk suddenly became really bloody. I had no idea I was passing clots until I strained the milk after pumping. My husband nearly fainted," she added.

While blood may not seem like something healthy to ingest, it's actually not dangerous for a baby to drink bloody breast milk.

Knox hopes to raise awareness about the early signs of mastitis, a condition that causes the breast tissue to become painful and inflamed, before it becomes a concern for the mother.

Knox isn't the only one who is working to reassure breastfeeding mothers and raise awareness about the condition.

Kristen Bell opened up about getting mastitis three times and having to be put on antibiotics twice.

One time she couldn't get to a doctor, and asked her husband to breastfeed to alleviate her pain.

"I said to my husband, 'I really need you to suck this out. We could talk about it, we could be weird about it, or you could just go ahead and nurse,'" Kristen said on a new web series on EllenTube called Momsplaining.

Share this story to raise awareness about mastitis and break the stigma surrounding breastfeeding!

[H/T: Metro]