21. Mastitis is quite common among breastfeeding women.22. Most mothers who develop mastitis usually do so within the first few weeks after delivery. 23. There is an increased risk of nonpuerperal mastitis occurring in the months after nipple piercing. 24. Comedo mastitis is a very rare form similar to granulomatous mastitis but with tissue necrosis. 25. Comedo mastitis is a very rare form similar to granulomatous mastitis but with tissue necrosis. 26. Based on Freedom of Information Act-obtained FDA materials, mastitis increases by 79 percent. 27. Mastitis can be classified as milk stasis, non-infectious or infectious inflammation and abscess.28. Early stages of mastitis can present with local pain, redness, swelling, and warmth. 29. Puerperal mastitis is the inflammation of the breast in connection with pregnancy, breastfeeding or weaning. 30. The EADGENE mastitis research can provide an example of how this type of collaborative network operates.