What Did I Expel During My Cold? Thick, Blood-Streaked Mucus - Otolaryngology

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Coughing up a large, soft yet firm, blood-tinged, thick mucus?


About the third day of my cold, I experienced symptoms including a sore throat (when swallowing), yellow phlegm, headache, and slight discomfort in my ears.
Normally, I have issues with nasal congestion, but this time I didn't have a stuffy nose or runny nose.
On the morning of the third day of my cold, I sneezed and suddenly felt my nose was blocked.
When I forcefully blew my nose, I expelled a mass about the size of a 50-cent coin, which was extremely sticky and thick, resembling a tongue in texture—hard yet soft, and reddish-yellow in color (the main difference from regular thick mucus is that it was really hard).
It startled me...
I thought I had blown something out from my body XD.
However, after expelling that mass, I felt a tremendous relief in my breathing, and it seemed like my cold was getting better...
I'm curious to know what I expelled? (I'm still a bit worried...)

Dongdong, 10~19 year old female. Ask Date: 2016/05/01

Dr. Zheng Jueyi reply Otolaryngology


Hello, most of the nasal discharge is still thick.
If the symptoms do not improve, further medical evaluation is necessary to confirm the condition.
Wishing you safety and health.
Sincerely, Dr.
Cheng Jue-Yi, Director of the Department of Otolaryngology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2016/05/01

More Info


When you experience a cold, your body goes through various changes as it fights off the viral infection. The symptoms you described, including a sore throat, headache, and the production of thick, discolored mucus, are common during a cold. The thick mucus you expelled, which was yellowish and blood-streaked, can be concerning, but it is essential to understand what it represents in the context of your illness.

Firstly, the color and consistency of mucus can provide insight into what is happening in your respiratory system. During a cold, your body produces mucus to trap and expel pathogens, allergens, and irritants. The mucus can change in color from clear to yellow or green as the immune system responds to the infection. Yellow or green mucus typically indicates that your body is fighting off an infection, as the color comes from white blood cells that have been sent to the site of infection.
The presence of blood streaks in the mucus can be alarming, but it is not uncommon. Blood in mucus can result from several factors, including irritation of the nasal passages or throat due to excessive coughing, sneezing, or blowing your nose. When you blow your nose forcefully, it can cause small blood vessels in the nasal lining to break, leading to blood-streaked mucus. This is usually not a cause for concern unless it persists or is accompanied by other severe symptoms.

The thick, sticky consistency of the mucus you described, which felt like a "lump" and was difficult to expel, may indicate that your body was producing a significant amount of mucus in response to the infection. The fact that you felt relief after expelling it suggests that it was obstructing your nasal passages, making it harder to breathe. This is a common experience during colds, where mucus can become thick and hard to clear, leading to feelings of congestion and discomfort.

In terms of what you expelled, it was likely a combination of mucus, immune cells, and possibly debris from the respiratory tract. The hard, sticky nature of the mucus could be due to dehydration, which can occur during illness, especially if you are not drinking enough fluids. Staying hydrated is crucial during a cold, as it helps thin the mucus, making it easier to expel and reducing the risk of complications.

If you continue to experience symptoms such as persistent blood in your mucus, severe headaches, or if your symptoms worsen, it is advisable to consult a healthcare professional. They can perform a thorough examination and determine if further investigation is needed, such as checking for sinus infections or other underlying conditions.

In summary, the thick, blood-streaked mucus you expelled during your cold is likely a result of your body's immune response to the viral infection. While it can be concerning, it is often a normal part of the healing process. Ensure you stay hydrated, rest, and monitor your symptoms. If you have any ongoing concerns, do not hesitate to seek medical advice.

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