Period Blood Smelling Like Cheese: What Does It Mean?

why does my period blood smell like cheese

Period blood can vary in colour, smell, and texture, and can be influenced by several factors. While it is normal for period blood to have a slight metallic smell due to the presence of iron in the blood, a strong, foul odour that resembles the smell of cheese could indicate an underlying infection or condition. This may include bacterial vaginosis, trichomoniasis, or thrush, which can cause a fishy, rotten, or yeasty smell. Maintaining good hygiene habits and being mindful of any unusual changes in smell, texture, or colour can help identify potential issues.

Characteristics Values
Common causes Presence of iron in the blood, poor hygiene practices, bacterial vaginosis, trichomoniasis, yeast infections, hormonal changes, diet, stress, pregnancy
Uncommon causes Foreign body, such as a forgotten tampon, dehydration, bacterial/yeast infections, STIs (chlamydia, gonorrhoea), pelvic inflammatory disease
Recommended actions Good hygiene practices (change pads/tampons frequently, bathe daily), consult a doctor if the smell persists or is accompanied by other symptoms

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Period blood can smell metallic due to the presence of iron in the blood

While period blood can vary in colour, smell, and texture, it's important to pay attention to these changes as they can indicate what's going on inside your body. Period blood can sometimes have a metallic smell, similar to copper coins. This is usually due to the presence of iron in the blood, which is a normal occurrence and is typically not a cause for concern. However, it's important to note that this smell should not persist long after your period ends.

The metallic scent is often associated with the blood and tissue shed from the uterine lining during menstruation. This combination of blood and tissue exiting the vagina, along with bacteria, can result in a "rotten" smell. While it's normal for the vagina to have bacteria, an overgrowth of certain bacteria can lead to infections such as bacterial vaginosis or trichomoniasis, which can cause a fishy odour.

Practicing good hygiene during your period can help manage normal period odours. This includes changing tampons, pads, or liners frequently, especially during heavy flow days, and maintaining daily showers. It's important to avoid deodorizing products, such as wipes and sprays, as they can irritate the vaginal area. Additionally, douching is not recommended as it can disrupt the natural balance of bacteria and acidity in the vagina, leading to potential infections.

While period blood can smell metallic due to the presence of iron, it's important to be aware of other factors that can influence vaginal odour. The vagina's pH level, or acidity, can impact its scent. A tangy or sour aroma is often associated with a healthy vagina, as it indicates the presence of good bacteria, such as Lactobacilli, which maintain the vagina's acidity and protect against harmful bacteria.

Additionally, hormonal changes, diet, and even pregnancy can contribute to temporary vaginal odour. Certain foods with strong odours, like garlic or fish, can affect the scent of the vagina. During pregnancy, increased blood flow and changing hormone levels can also cause new smells. It's important to note that a strong, unfamiliar, and unpleasant odour, especially one that persists for several days, may indicate a health problem and should be addressed by a healthcare professional.

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A rotten or fishy smell may indicate an infection

A rotten or fishy smell during your period may be a sign of an infection. While it is normal for period blood to have a slight odour, a strong, foul smell could indicate a problem.

A fishy smell during menstruation is often attributed to bacterial vaginosis, a common vaginal infection caused by an overgrowth of bacteria in the vagina. This type of infection is usually treated with antibiotics. Trichomoniasis, a sexually transmitted infection, can also cause a fishy smell during your period.

A rotten smell can occur when a tampon is left in for too long or forgotten. This can happen towards the end of a period when you may not need to insert a new tampon as often and you may not be bleeding as heavily. If you suspect that you have forgotten to remove a tampon, try to feel for the string at the opening of your vagina and remove it. If you are unable to do so, you should see a doctor.

Other factors that can influence the smell of your period blood include the vagina's pH level and the presence of bacteria. Practising good hygiene during your period can also help to prevent unwanted odours. This includes changing your pad every time you use the restroom and changing your tampon every few hours. It is also recommended to bathe daily and clean the outside of your vagina with water and unperfumed soap.

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Poor hygiene during a period can cause a sweaty gym smell

Maintaining good menstrual hygiene is important for your health and can help prevent infections, reduce odours, and keep you comfortable during your period. Here are some tips to improve menstrual hygiene and reduce the risk of a sweaty gym smell:

  • Change your menstrual products regularly, such as pads, tampons, or menstrual cups. It is recommended to change pads every time you use the restroom and change tampons every few hours (every 4-8 hours).
  • Keep your genital area clean by washing the outside of your vagina (vulva) and bottom at least twice a day, or more often if needed. Use warm water without soap to preserve the natural flora of the vagina.
  • Avoid scented hygiene products, as they can irritate the skin and impact your natural pH balance. Choose products that are free from alcohol and fragrance.
  • Wear lightweight, breathable clothing, such as cotton underwear. Tight, synthetic fabrics can trap moisture and heat, providing a breeding ground for bacteria and fungi.
  • Drink enough liquids to help flush out your urinary tract and prevent infections.
  • Practise good washing techniques, such as wiping from the front of your body towards the back to avoid introducing bacteria from the anus to the vagina.

By following these hygiene practices, you can help reduce unpleasant odours during your period and maintain your overall health and comfort.

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A strong, unfamiliar, and unpleasant odour could be a sign of a health problem

While it is normal for period blood to have a slight odour, a strong, unfamiliar, and unpleasant odour could be a sign of a health problem. Period blood can sometimes have a metallic smell, like copper coins, due to the presence of iron in the blood. This is typically not a cause for concern. However, a strong, unpleasant odour, especially one that persists, could indicate an underlying issue.

A fishy smell during menstruation is often associated with bacterial vaginosis, a common vaginal infection caused by an overgrowth of bacteria. This odour may be more noticeable during menstruation as blood increases vaginal alkalinity. Bacterial vaginosis can be treated with antibiotics. Trichomoniasis, a sexually transmitted infection, can also cause a fishy smell.

A rotten or putrid odour during your period could be due to a forgotten tampon or a foreign body in the vagina. Removing the tampon or foreign object should alleviate the smell. However, if the odour persists or is accompanied by other symptoms, it may indicate an infection or another underlying condition.

Practising good hygiene during menstruation can help prevent strong odours. Changing tampons, pads, or liners frequently, maintaining proper genital hygiene, and wearing breathable cotton underwear can help minimise unpleasant smells. However, it is important to avoid douching and scented feminine hygiene products as these can disrupt the natural vaginal flora and potentially lead to infections.

If you notice a strong, unfamiliar, and unpleasant odour during your period, especially if it is accompanied by other symptoms such as unusual discharge, itching, or pelvic pain, it is important to consult a doctor or gynaecologist. They can help determine the underlying cause and provide appropriate treatment.

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A chemical-like smell can indicate bacterial vaginosis

While it is normal for period blood to have a slight odour, a chemical-like smell can indicate bacterial vaginosis. Bacterial vaginosis is a common vaginal infection caused by an overgrowth of bacteria in the vagina. It is characterised by a strong, unpleasant odour that may be described as fishy, rotten, or similar to cheese. The odour is typically more pronounced during menstruation due to the increased vaginal alkalinity caused by the presence of blood.

Bacterial vaginosis is often associated with other symptoms, such as itching, burning, and a grey or white vaginal discharge. The discharge may have a cottage cheese-like appearance and can be a sign of an infection. It is important to note that bacterial vaginosis is not a sexually transmitted infection, although it is more common in women who are sexually active. Other risk factors include new or multiple sex partners and douching.

If you suspect you have bacterial vaginosis, it is important to consult a doctor or a healthcare provider. They will be able to diagnose the condition using a range of tests and prescribe appropriate treatment, typically antibiotics. Practising good hygiene during menstruation, such as changing sanitary products frequently and maintaining proper vaginal pH levels, can also help reduce unpleasant odours associated with bacterial vaginosis.

It is worth noting that there are other potential causes of a chemical-like smell during menstruation. For example, urine residue on the genitals or dehydration can result in a chemical or ammonia-like odour. Additionally, stress can cause an increase in sweat gland activity, leading to a body odour-like scent that may be described as skunk-like. Practising daily bathing and maintaining proper hydration can help address these issues.

While it is normal for period blood to have a slight smell, a strong and persistent odour that does not resolve may indicate an underlying condition. It is always advisable to consult a healthcare professional if you have concerns or if the odour is accompanied by other symptoms.

Frequently asked questions

A strong, unfamiliar and unpleasant odour, especially one that smells like cheese, isn’t normal. A cheese-like smell is likely a symptom of a health problem, especially when it accompanies other symptoms like a grayish-white vaginal discharge, burning and itching.

A cheese-like smell could be caused by an overgrowth of yeast in the vagina, which is called thrush. It can cause white vaginal discharge that looks like cottage cheese, soreness and stinging when you pee, and itching or irritation around your vagina.

If you experience a strong, unfamiliar and unpleasant odour, you should speak to your doctor. They will be able to advise on any necessary treatment, such as antifungal medication.

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