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Doctor insights on: Why Does Mono Only Affect The Spleen

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Why does mono only affect the spleen?

Why does mono only affect the spleen?

It doesn't: Mononucleosis is an infection by the epstein-barr virus. The infection is fought off by the body's immune system, composed of white blood cells and other proteins. The spleen is similar to a giant lymph node and will swell up as it fights the virus, as do the neck lymph nodes. The spleen is mentioned because it's location and thin covering makes it vulnerable to trauma and rupture with hemorrhage. ...Read more

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Dr. Michael Ein
766 doctors shared insights

Mono (Definition)

Infectious mononucleosis, also known as mono, is a contagious illness caused by the Epstein-Barr virus. Symptoms include fever, fatigue, sore throat, enlarged lymph nodes, and enlarged spleen. It is spread via saliva, hence its ...Read more


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Is it possible for your spleen to enlarge as Mono is heading out of your system? It wasn't enlarged before but I'm worried. Is that not how it works?!

Is it possible for your spleen to enlarge as Mono is heading out of your system? It wasn't enlarged before but I'm worried. Is that not how it works?!

Peaks early: With this disorder, you usually see this side effect by the end of the first week of symptoms (which is when they come in for diagnosis) with a gradual decline over the course of the illness. By three weeks in I am seldom ever able to feel an enlarged spleen, even on kids who had it earlier. ...Read more

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Can you get mono if you don't have a spleen?

Can you get mono if you don't have a spleen?

Yes: Mono is a pattern infection responsible for the appearance a mononuclear white cells in excessive numbers.There are several potential germs that cause it, 80% as the E. B. virus. The germ does not care if you have a spleen or not when you get it. ...Read more

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Recovery stage of mono. My blood looks good & my spleen doesn't seem to be enlarged. When can I start lifting? Can it become enlarged in acute stage?

Recovery stage of mono. My blood looks good & my spleen doesn't seem to be enlarged. When can I start lifting? Can it become enlarged in acute stage?

Wait: The spleen is usually enlarged with infectious mononucleosis (barr epstein virus infection). The spleen can rupture if there is trauma to the spleen when it is enlarged. Lifting of course depends on the weight of what you lift. Give your body time to heal and the spleen to return normal size and this may take 3 months. ...Read more

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Was diagnosed with mono in july- can my spleen still be hurting?

Was diagnosed with mono in july- can my spleen still be hurting?

Possibly: I never fail to be amazed by how long mononucleosis (mono) can take to fully resolved. I always loosely think of it taking about a semester for college students to fully recover. In general the younger you are the faster. If your left side is still very sore it may be worth checking with your doctor to make sure is really your spleen that hurts or even consider an ultrasound. ...Read more

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My son is 6 years old and 3 monthes ago he got the mono.and till now his spleen is verry enlarged ?is it normal?

My son is 6 years old and 3 monthes ago he got the mono.and till now his spleen is verry enlarged ?is it normal?

Infectious mono: Sometimes Spleen can remain enlarged for long time . Avoid contact sports and lifting heavy weights . ...Read more

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I have been diagnosed with mono again and have been told my spleen is enlarged. I was wanting to know is it a bad sign if my ULQ is silently painful ?

Enlarged spleen: An enlarged spleen from mono can certainly be painful and would be a good reason to rest . The left upper quadrant or LUQ, is certainly where the spleen hangs out. This type of discomfort should be checked out by your doctor, however. As soon as possible. Definitely do not exercise when this is going on. ...Read more

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Should u go skiing if ur spleen is inlarged and u have mono?

Not a good idea: When you have an enlarged spleen, it is possible for it to rupture (break open) if you hit something. That can be dangerous and make you need emergency surgery. Spleens can be different sizes, but generally the bigger, the worse the risk from being hit. Also, people with mono are often too tired to enjoy or do well with skiing. Put off your skiing several weeks. ...Read more

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Smoking during mono effect on spleen?

Smoking during mono effect on spleen?

Don't recommend: I don't know the exact effect. But the spleen is working overtime with a major infection. You could develop spleenomegaly. Why tax your system even further? I would strongly recommend against it. ...Read more

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How do doctors treat swollen spleens caused by mono?

How do doctors treat swollen spleens caused by mono?

No treatment: There is no specific treatment. Surgery is indicated if you develop spontaneous splenic rupture. Avoid dangerous activities that can place you at risk for splenic injury. ...Read more

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How long will it take my spleen to recover from having mono?

It will vary: This depends on how long it takes for the mono to resolve. The spleen is composed of lymphoid tissue, which commonly swells during mono. The doctor will assess the progress of mono often times by examining the spleen. As the mono resolves, so will the size of the spleen. This takes between two weeks and two months or more. ...Read more

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I have mono and my spleen is enlarged. Can it get larger overtime?

I have mono and my spleen is enlarged. Can it get larger overtime?

Not likely: The splenic enlargement due to mono should subside in a matter of weeks. In the meantime avoid activities that may risk trauma to the abdomen in general and spleen in particular. If the enlargement has not subsided in three months, consult your doctor. ...Read more

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Is it okay to have mild pains in my left side? I dont know for a fact that my spleen is swollen but I was diagnosed with mono 2 weeks ago.

Okay if it's mild: You could have abdominal pain. As long as it's mild, it is okay. I suggest avoiding any contact sport or strenuous exercise If the pain worsens have it checked out. ...Read more

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I just got over a sever case of mono I know my spleen is swollen but all my symptoms have been gone for about 2 weeks can I start doing light lifts?

I just got over a sever case of mono I know my spleen is swollen but all my symptoms have been gone for about 2 weeks can I start doing light lifts?

Up to 5 pounds: The risk you are trying to avoid is spleen rupturing. Lifting is very unlikely to do that, so light lifting is fine. Basically you can lift light loads as this is not going to rupture the spleen, probably 5-10 pounds, no more. More importantly, you need to avoid activities that you could accidentally get kicked or hit in the abdomen with. So even just wrestling playfully on floor could injure. ...Read more

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How much trauma is needed to rupture your spleen if you don't have mono?

How much trauma is needed to rupture your spleen if you don't have mono?

Splenic rupture: Splenic rupture usually occurs after blunt trauma. This includes a blow to the left lower rib cage, or a sharp stopping such as a car accident or a fall from a height. ...Read more

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Is it normal to have slight left side and shoulder pain with mono? I know it can enlarge spleen...pain isn't severe, but aches a bit. Will I be ok?

Yes: Mononucleosis causes splenomegaly which would cause left sided abdominal pain that can radiate to the shoulder. As long as the pain isn't sudden or severe, then don't worry about it. Expect to start feeling better in a couple weeks though. Get some rest! ...Read more

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If I get mono, how long will my spleen stay swollen?

If I get mono, how long will my spleen stay swollen?

Duration of illness: The fact that one's spleen swells during the course of mononucleosis means that the spleen is functioning properly. It is a filter for bacteria and abnormal blood cells, and as such will swell in a state that gives rise to these conditions. The spleen size is often monitored by your doctor while you are ill and the recession of spleen size is an indication of improving health. ...Read more

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Upper Abdomen (Definition)

Draw a transverse line through the umbilicus and the upper abdomen includes every part of the belly above this line and below the ...Read more