Rather, it is a sign of some other infection, disease, or of a sensitivity to a drug. The following are the most common symptoms of erythema nodosum. However, each individual may experience symptoms differently. Symptoms may include:. Young adults are particularly susceptible to erythema nodosum.
The symptoms of erythema nodosum may resemble other skin conditions. Always talk with your healthcare provider for a diagnosis. A biopsy removal of tissue for exam under a microscope of a bump can usually confirm the diagnosis. It is most common in women between the ages of 20 and 30 years but it can occur at any age.
In children, it affects boys and girls equally. Book a private appointment with a local pharmacist today to discover treatment options. Before the rounded lumps nodules appear, you may feel generally unwell for a few weeks.
You may have a high temperature fever , a cough and may lose weight during this time. You may also have aching joints, stiffness and general aches and pains. Your joints may become swollen. Ankle, knee and wrist joints are most commonly affected but any joint can be painful. Aching legs and joints can last for a number of weeks, or even months, after the nodules have appeared. The nodules that occur in erythema nodosum can measure between cm across.
The outlines margins of the nodules are not very well defined. The shins are the most common site. Other common sites are on the arms, thighs and trunk but nodules can occur anywhere on the body. Each nodule tends to last for about two weeks but new nodules can continue to appear for up to six weeks.
When the nodule first appears it is usually red, hot and firm to the touch. It then becomes squashy fluctuant. As the nodule begins to fade, it looks more like a bruise, turning blue and then yellowish. It usually takes some weeks for the nodules to heal completely. They do not leave any scarring.
These depend on the trigger. For example, the nodules of erythema nodosum can appear two to three weeks after a streptococcal throat infection. People with inflammatory bowel disease may have tummy abdominal pain and diarrhoea. People with TB may have a cough and breathing problems. Your doctor will usually diagnose erythema nodosum by its typical appearance.
However, if they are unsure, your doctor may suggest that they refer you to a specialist for a biopsy. During a biopsy, a small sample of tissue is taken from one of the rounded lumps nodules. The tissue sample is then sent to the laboratory to be examined under a microscope. Erythema nodosum has a typical appearance under a microscope and the diagnosis can usually be confirmed.
If your doctor diagnoses erythema nodosum, they will usually suggest some tests to look for an underlying trigger. The tests that they suggest may depend on any other symptoms that you may have.
Tests may include:. The bumps will often fade within two to four weeks, but they can take up to two months to heal completely. Pain in your legs can continue for up to two years after erythema nodosum heals. Panniculitis is a group of conditions that cause painful bumps nodules to form under your skin, often on your legs and feet. Learn more. Is cellulitis contagious?
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Congested skin refers to skin that becomes bumpy, irritated, and acne-prone.
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