Pimple on Your Knee: Causes and Treatment

Pimple on your knee (Knee Cap)

There are many types of pimples on your knee. They include:

1. Acne vulgaris – Acne is a skin disease caused by bacteria that causes redness, swelling, and inflammation of the face, neck, chest, arms or legs.

The acne may cause pus-filled pustules which can bleed easily if touched or scratched. The pimples often appear within a few days after washing or showering.

2. Pimple on your knee (Knee Cap) – A pimple on your knee is a type of acne that occurs when bacteria grows inside the pore of the skin.

These pimples usually occur in areas where there are no other signs of infection such as around the knees, armpits, groin area, etc..

3. Bumps on your knee (Knee Cap) – Bump on your knee is a type of acne that appears when bacteria grow inside the pore of the skin.

These bumps usually appear near the top of the shin bone, above the kneecap, or along both sides of it.

4. Lumpy Skin – Lumpy skin is a type of acne that results from bacteria growing inside pores in the skin.

It presents itself as collections of firm, rounded lumps underneath the skin.

5. Chapped Skin – Chapped skin is a type of acne which produces brownish dry, rough, scaly skin patches with red skin in between.

It can appear on any part of the body but most commonly affects the lower legs and inside the folds of skin in the armpits and groin. It usually occurs in people who are overweight or have a medical condition which causes excessive sweating.

Our expert has this to say:

1. Pimples on your knee (Knee Cap) are caused by a bacterium known as p.

acne. This bacterium feeds on sebum, a natural oil produced by the skin cells.

Blemishes form when the sebum, p.acne and dead skin cells form a plug in one of the hair follicles. After a while, the p.acne multiplies and releases a toxin which causes inflammation in the surrounding skin. If the p.acne is not treated, the inflammation can spread, causing more damage to the skin cells.

Pimples first appear as red lumps on your skin. After a few days they fill up with pus before turning into a blackhead.

Eventually they turn into a whitehead and then into a red lump again before finally bursting, leaving an unsightly brown mark until the skin heals.

2. Pimples on your knee (Knee Cap) are usually caused by friction, heat or tight clothing.

Tights or tight jeans are notorious for causing pimples on your knee (Knee Cap) among women who wear them. Hormonal changes can also cause pimples on your knee (Knee Cap).

Women tend to suffer from more pimples on their knees (Knee Cap) than men, particularly during their teens and just before menstruation. Taking contraceptive pills can also cause hormonal changes in the body, leading to pimples on your knee (Knee Cap). Stress can also cause pimples on your knee (Knee Cap), especially in women who are prone to acne.

3. Bumps on your knee (Knee Cap) are sometimes caused by excessive dryness of the skin.

Usually, the area around the bump will appear red and will feel rough to the touch. Skin bumps are sometimes caused by ‘papules’ – small, red lumps which are usually harmless and disappear after a few days.

Papules are not pimples, but are actually part of the skin’s normal structure.

Treatment for Bumps on your knee (Knee Cap) depends on what is actually causing them. If you sweat a lot then anti-perspirants can help soothe and prevent bumps from forming.

Drinking plenty of water every day will also make your skin less dry and more pliable, thereby decreasing the chances of bumps forming.

4. Lumpy Skin is often a combination of an accumulation of dead skin cells mixed with sebum, the natural oil your skin produces.

The build-up of these two ingredients can sometimes cause pimples or whiteheads to form, which in turn become infected and inflamed.

In most cases, the lumps disappear a few days after the area has been thoroughly cleaned. You can either try to squeeze or pop the lumps yourself, or visit a doctor for an injection of cortisone, which should flatten them in a day or two.

5. Chapped skin is often caused by strong soaps, industrial creams or detergents and not enough moisture in the air.

Sources & references used in this article:

High-dose isotretinoin treatment and the rate of retrial, relapse, and adverse effects in patients with acne vulgaris by RC Blasiak, CR Stamey, CN Burkhart… – JAMA …, 2013 – jamanetwork.com

Drug-induced lupus caused by long term minocycline treatment for acne vulgaris by S Hanai, T Sato, K Takeda, K Nagatani… – Arerugi …, 2015 – europepmc.org

Targeted treatment of pyoderma gangrenosum in PAPA (pyogenic arthritis, pyoderma gangrenosum and acne) syndrome with the recombinant human interleukin‐1 … by M Brenner, T Ruzicka, G Plewig… – British Journal of …, 2009 – Wiley Online Library

Acne-Like Subcutaneous Phaeohyphomycosis Caused by Cladosporium cladosporioides: A Rare Case Report and Review of Published Literatures by YB Zhou, P Chen, TT Sun, XJ Wang, DM Li – Mycopathologia, 2016 – Springer

Acne vulgaris and the quality of life of adult dermatology patients by RJ Lasek, MM Chren – Archives of dermatology, 1998 – jamanetwork.com

Skin Conditions: From Acne to Eczema by D Reynolds – 2018 – books.google.com

Pyogenic arthritis, pyoderma gangrenosum, acne, and hidradenitis suppurativa (PAPASH): a new autoinflammatory syndrome associated with a novel mutation of the … by AV Marzano, V Trevisan, M Gattorno… – JAMA …, 2013 – jamanetwork.com

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Acne fulminans: explosive systemic form of acne by R Zaba, RA Schwartz, S Jarmuda… – Journal of the …, 2011 – Wiley Online Library