What Happens If You Give A Subcutaneous Injection Intramuscularly?

What Happens If You Give A Subcutaneous Injection Intramuscularly?

What Happens If You Give A Subcutaneous Injection Intramuscularly?

Subcutaneous injections are a safe and effective method of giving certain medicines. However, the medication given in this manner is slower to be absorbed than when injected directly into the bloodstream via an arterial vein.

But they can also be uncomfortable. It is possible to reduce the irritation and discomfort by choosing an injection location less prone to discomfort.


Subcutaneous injections are a typical medical procedure that may cause discomfort and pain. They can be used for various reasons, like administering drugs that require a thorough injection through the muscles (like morphine or vaccines) or injecting medication through your skin to stop swelling or bleeding, or even cosmetic procedures such as Botox.

Intramuscular injections are among the most painful kind of injections. They feature the longest needles and go through your muscles to release the medication into the bloodstream. Due to the way that these needles puncture the skin, they can cause a great deal of pain, muscle damage, and an immune reaction.

To ease the sensation of pain after an intramuscular injection may suggest positioning yourself in a position that reduces the tension on your muscles, for example, lying down or leaning over tables. They might also suggest applying an ice pack or an over-the-counter numbing cream before giving yourself an injection.

The dimension and form of the needles you choose to use can also have an impact. For example, needles with smaller diameters are less painful than larger-diameter ones. It is also recommended to be wary of using a needle that isn’t sharp enough and does not have sharp tips.

Another reason that may increase the pain sensation is when you strike an artery while applying your skin. This could cause an infection in the injection area and cause the site to become enlarged and painful, leading to pain and even bleeding later.

Your doctor can assist you in determining the most effective method of administering subcutaneous injections and provide directions on how to do it properly. They can also provide feedback when you’re performing something incorrectly or hitting a blood vessel and offer suggestions for changing your procedure for subsequent injections.

If you require two doses, alternate the injection site, so you don’t get identical injection locations for two consecutive days. This reduces the risk of swelling and bruising and the risk of getting a reaction to the injection.


Subcutaneous injections are a kind of injection that uses small needles to inject the medication into the skin. This allows the drug to be absorbed less quickly than when administered into a muscle or vein. This is a great method of administering certain medications, such as insulin, blood thinners, or hormones.

Before giving an injection under the skin before giving a subcutaneous injection, you must clean the area of your skin where you intend for it to be injected. You can use an alcohol swab or a cloth to accomplish this. This will help cleanse the area and stop the growth of bacteria and other organisms at the location. Also, ensure that the skin isn’t hard or red before giving the injection.

The ideal location to inject subcutaneously can easily squeeze and take away from the body, for example, the lower portion of your stomach, the upper arm, or the thigh’s side (vastus of lateral). It is possible to alter the injection site every time to ensure the medicine is not accumulating within one spot.

To insert the needle in your skin, you have to place the needle in between the thumb of your first finger. Then, put your syringe’s barrel onto the second finger. You may require tilting the syringe to help get it inside your skin.

It is necessary to pin approximately 1/8 inch of skin so that the fat tissue (which is not what you would like) is removed from the muscles in which the medication is supposed to be. This allows you to move the fatty tissue away from the muscle and keeps it from adhering to the needle.

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After you’ve pinched the fat tissue, you can start injecting. If you’re experiencing problems, you should consult your doctor for assistance.

While injecting, there is a possibility of feeling discomfort or a stinging sensation at the injection site. This is normal and generally will last for only just a few minutes. However, suppose you suffer from any reaction that is allergic to the medication. In that case, the reaction could last longer or cause a serious reaction.


You inject fat tissue between the muscles and skin if you administer an intramuscular injection subcutaneously. This area is located within the arm’s upper part and thigh area, as well as the hips or buttocks.

Your physician will select the most appropriate location for injection. When you inject, it is recommended to rotate the injection site to prevent bruising or discomfort. Also, avoid pulling the muscles involved throughout the injection.

After the needle has been in, staying in for approximately 30 minutes is recommended. During this period, do not pull back the plunger. This could result in injuries or a fall, which could require treatment.

An injury is a purplish or red area that is uncomfortable or tender to the touch or feel. It typically fades within two weeks. In this period, the blood in the skin’s pores starts to break down and absorb.

In this procedure, your body changes the color of your blood, known as the”bruise’s “color.” This color change is normal and is part of healing.

The hue of a bruise is based on the oxygen level in the blood. It is initiated with a reddish hue; however, after a few days or two, it can alter to blue, violet, or even black because your human body is breaking down hemoglobin which gives blood its red hue.

If you’re dark in the skin, your bruise might appear more red than blue. Likewise, people with medium skin tones are likelier to see a reddish look to their bruises.

If you experience bruising, treating it promptly following the injury is important to minimize bleeding and swelling. Place the affected area on ice and apply ice within 20 to 30 minutes.

The bruised part above your heart when you can prevent blood from pooling within the damaged tissue. This could lead to compartment syndrome. It is very dangerous and is caused when the pressure inside an area of the body becomes excessive, preventing blood flow to surrounding tissues.


Suppose you administer an injection through the subcutaneous area intramuscularly. In that case, it could cause more pain than injecting it directly into the vein. This is because a tiny needle is inserted into the fatty tissue beneath the skin. It may also be more sensitive because it touches the underneath muscles.

A large number of medicines are administered in this manner. Certain medications are only absorbed this way. At the same time, other medicines cannot be directly injected into veins since they wouldn’t function.

When injecting subcutaneously intramuscularly, you must use a method that makes the procedure less uncomfortable and more likely not to trigger irritation to the injection site. There are a variety of methods to use, including pressing the skin between the thumb and index fingers of your hand with no dominant hand and securing the syringe between the fingers like darts, and then injecting rapidly and with firm pressure with an angle towards the surface (Figure 8.).

Your doctor may instruct you how to do this properly; however, learning at your own home is simple. First, cleanse the area with the alcohol pad or cotton ball soaked in alcohol. Next, apply pressure with a firm touch on the skin near the injection point, then allow it to dry.

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Then, insert the needle at an angle that helps to get it into the fatty tissue underneath the muscle. Then, press downwards on the plunger to inject the medicine.

It is also advisable to avoid hitting blood vessels when injecting. The risk of hitting the blood vessel is very high when you’re overweight, so it’s best not to inject into your abdomen. If you do strike the blood vessel, you should call your physician.

Suppose your medical professional has shown you how to perform this procedure correctly. In that case, it can help you feel more comfortable and less anxious about getting an injection. This will also aid in preventing irritations at the injection site and other issues resulting from your injections, including an infection.

The most frequent negative side effect of subcutaneous injections is irritation at the injection site. It can be mild or even severe. However, these effects aren’t dangerous and will be improved after 24 hours. Suppose your irritation worsens or you experience an increase in fever, swelling, and drainage from your injector site or an all-body response. In that case, visiting your doctor immediately is recommended for an evaluation.

What Happens If You Give A Subcutaneous Injection Wrong?

Subcutaneous injections are a routine procedure that is used to inject medication or fluids into the subcutaneous tissues, which are the tissue that lies beneath the skin. Although subcutaneous injections are generally considered safe, adverse reactions or complications are possible, especially when the injection is administered incorrectly. In the following article, we’ll explain what happens if we administer a subcutaneous injection incorrectly and how to avoid the possibility of complications.

Potential Complications of Incorrect Subcutaneous Injections.

Suppose an injection administered subcutaneously is done in a way that is not correct. In that case, a variety of complications could be experienced. This includes:

1. Pain and Discomfort

When the medication is done too quickly or at an improper angle, it may cause discomfort and pain at the injection site. It can be especially uncomfortable if the medication can cause irritation or an unpleasant burning sensation.

2. Infection

When the injector is administered using contaminated equipment or if proper sterile procedures are not observed, it may cause infections at the injection location. The signs of infection are swelling, redness, heat, tenderness around the injection site, chills, fever, and general feelings of sickness.

3. Hematoma

When the procedure is done in a way that is too forceful or at an improper angle, it could result in bleeding or bruising beneath the skin, referred to as hemorrhage. In addition, a hematoma may be uncomfortable and swollen and could take days or weeks to disappear.

4. Abscess

Abscesses are collections of pus that can develop at the injection site if bacteria enter the tissue beneath. Abscesses may be painful and swelling and could require drainage or antibiotics to heal.

5. Nerve Damage

If the injection is too deep or at an unnatural angle, it may harm the nerves of the tissue beneath. Nerve damage can result in discomfort, numbness, and tingling, as well as weakness or discomfort in the area. It may also require further medical treatment to be cured.

How To Prevent Incorrect Subcutaneous Injections?

Practicing the proper procedure and safety measures is crucial to avoid the potential negative effects of a wrong subcutaneous injection. This includes:

1. Use a Sterile Technique

Always make sure to use sterile techniques for administering a subcutaneous injection. This means washing your hands with sterilized gloves and equipment and cleaning the injection site using an antiseptic.

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2. Choose the Appropriate Injection Site

Pick the correct injector for the drug to be administered. Certain medications require injections into different parts of the body. Hence, it is essential to follow the prescriptions of the doctor who prescribes the medication.

3. Follow the Correct Angle and Depth

Use the correct angle and depth of the injection. The angle and depth of the injection could differ depending on the dose provided and the tissue’s depth.

4. Apply Appropriate Pressure

Apply pressure at the injection site following the injection to prevent bleeding and the formation of hematomas.

5. Monitor for Complications

Check the injection site and the patient for any signs of complications, such as pain, swelling, and redness. Also, look for fever or chills. In the event that any one of these symptoms is observed, contact your health professional immediately.

What Happens If An Injection Misses The Muscle?

When injections intramuscular (IM) injection is administered incorrectly and does not reach muscles, this may result in a variety of possible complications, including:

The Pain:

The medication may irritate the tissue around it and result in discomfort.


If the medication isn’t absorbed properly, it could form a lump, also known as an abscess, at the injection site.

Damage To The Nerve:

When a needle touches the nerve, it could cause nerve damage that results in numbness, tingling, or weakness of the muscles.

An Infection:

If the needle isn’t cleaned properly, it may bring in bacteria and trigger an infection.

Lower Effectiveness:

Suppose the medicine isn’t delivered to the muscle as intended. In that case, it could take longer to be taken in well and could not achieve the intended therapeutic impact.

Following the proper injection procedures and seeking medical attention if you suffer any adverse reactions after receiving an injection is essential. If you notice any redness, swelling, or warmth around the injection site, chills, fever, or any other indications of infection, consult your physician immediately.


What distinguishes an intramuscular injection from a subcutaneous injection?

An intramuscular injection is injected into a muscle, whereas a subcutaneous injection is given just below the skin. The two kinds of injections are used for different things, and putting a medication in the wrong layer of tissue can make it work differently.

What happens if you inject subcutaneously but accidentally inject intramuscularly?

A medication intended for subcutaneous injection may be more quickly absorbed and possibly have more side effects if injected into a muscle. However, especially if it is a small amount of medication, it is unlikely to cause significant harm.

When medication is injected intramuscularly when it should be subcutaneously, what are the side effects?

The effects of injecting a medicine meant for subcutaneous injection into a muscle can vary depending on the dose and the medication. Pain at the injection site, swelling and redness, bruising, and an increased risk of infection are some common symptoms.

How can you avoid injecting yourself accidentally through the muscle?

When administering a subcutaneous injection intramuscularly, it is essential to follow the pharmacist’s or healthcare provider’s instructions to avoid making an error. Take note of the recommended injection location and injection depth.

If you administer a subcutaneous injection intramuscularly by mistake, what should you do?

It is critical to keep an eye on the patient for any adverse reactions in the event that you administer a subcutaneous injection intramuscularly by mistake. Consult a medical professional for guidance if the medication carries a high risk of adverse effects. In any case, keep an eye on the injection site for signs of infection or other problems. Consult a doctor if you are unsure of what to do.