Mastitis is an inflammation of specific parts of the breast, which can narrow the milk ducts and impede milk flow. Mastitis typically presents as an initial symptom of breast swelling, often accompanied by discomfort. On individuals with darker skin tones, this may manifest as skin darkening, while on those with lighter complexions, it might appear as a red area on the breast. It's worth noting that visible changes in skin color may not always occur. Notably, the presence of inflammation and swelling doesn't invariably indicate an infection, as per the WHO in 2000. Furthermore, the involvement of harmful bacteria isn't a constant factor, meaning antibiotics may not be necessary if self-help measures are initiated promptly. In rare instances, mastitis can progress to a more severe condition necessitating urgent hospitalization and intravenous antibiotics (RCOG, 2012)

Mastitis can develop when milk seeps into breast tissue due to a blocked duct, and this prompts the body to react similarly to an infection by increasing blood circulation, resulting in the onset of inflammation. Overproduction of milk can exacerbate the condition and lead to infection, which may result in more severe issues like abscesses or galactoceles, which are lumps of milk that do not disappear and can become infected.

-A localised area within the breast that is tender to touch, often situated in the outer upper region. Some mothers may observe a change in skin colour or the presence of a red area on their breast.

- A breast with irregular lumps that feels warm to the touch.

- The entire breast experiences discomfort and may exhibit swelling, with skin color potentially appearing reddened or darker, depending on skin tone.

- Symptoms resembling the flu, such as body aches, an elevated temperature, shivering, emotional sensitivity, and fatigue (Jahanfar et al., 2013). These symptoms can sometimes onset suddenly and intensify rapidly.

Please note that not all of these signs may necessarily be present in cases of mastitis.

If the breast doesn't respond to home remedies, bacterial mastitis may be the cause. Bacterial mastitis causes a specific area of the breast to become red, swollen, and painful. If left untreated, it can spread to other areas of the breast.

You should get in touch with your GP or health visitor under the following circumstances:

1. If you haven't improved within 24 hours despite trying self-help methods or if your condition worsens.

2. If the affected area becomes swollen, round, or shows signs of redness or a change in skin color, especially if the pattern of redness changes.

3. Keep in mind that redness may be less noticeable on darker skin tones.

4. If you suspect that mastitis is progressing into an abscess, which is a painful collection of pus. More information can be found here: NHS Breast Abscess

If you experience symptoms like feeling unwell, dizzy, confused, developing nausea, vomiting, or diarrhea, or experiencing slurred speech, it's crucial to seek immediate medical attention, as these could be signs of mastitis progressing towards sepsis. In severe cases, sepsis is a medical emergency requiring hospital admission and intravenous antibiotics. (Source: NHS Choices - Sepsis, RCOG, 2012:6.1)

If mastitis recurs after completing a full antibiotic course or presents with severe symptoms, it is advisable to submit a milk sample for bacterial testing. This assists your GP in selecting the most appropriate antibiotic treatment (Jahanfar et al., 2013). In the interest of public health, healthcare providers strive to minimise the use of non-essential or ineffective antibiotics. Completing the entire antibiotic course is crucial to ensure a full recovery and reduce the risk of recurrent mastitis with antibiotic-resistant bacteria (NICE NG15).