Disease Comparison

Overview

Major Depressive Disorder

Major depressive disorder is a mood disorder characterized by persistent depressed mood or loss of interest that interferes with daily life. Symptoms may affect sleep, appetite, energy, concentration, and functioning and generally persist for at least two weeks. Depression can affect people of different ages and may require ongoing treatment.

Bursitis

Bursitis is inflammation or irritation of a bursa, a small fluid-filled sac that cushions tissues around joints and reduces friction during movement. It commonly affects the shoulder, elbow, hip, knee, or heel. Repetitive movement, prolonged pressure, injury, infection, or inflammatory conditions may contribute. Symptoms usually include localized pain, tenderness, swelling, and discomfort with movement or pressure. Treatment depends on the cause and may include activity modification, physical therapy, medicines, drainage, or treatment of an underlying condition.

Symptoms

Shared

None

Only in Left Disease

Depressed Mood Excessive Sleepiness Irritability Mood Swings Yellow Skin

Only in Right Disease

Back Pain Bone Pain

Causes

Shared

None

Only in Left Disease

None

Only in Right Disease

Chronic Disease Infection

Diagnosis

Major Depressive Disorder

Diagnosis is based on symptoms, their duration, their effect on daily functioning, medical history, and clinical assessment. Major depression generally involves depressed mood or loss of interest lasting at least two weeks along with other symptoms. Healthcare professionals may also assess for medical conditions, medicines, or substance use that could contribute to symptoms.

Bursitis

Bursitis is usually diagnosed through history and physical examination. The location of pain, tenderness, swelling, movement-related symptoms, and recent activities help identify the affected bursa. Imaging such as ultrasound or MRI may be used when the diagnosis is uncertain or another injury is suspected. If the bursa is significantly swollen or infection is suspected, fluid may be removed with a needle for laboratory analysis. Fever, redness, warmth, or rapidly increasing swelling can suggest septic bursitis.

Prevention

Major Depressive Disorder

Major depressive disorder cannot always be prevented. Maintaining supportive social connections, regular physical activity, adequate sleep, healthy routines, and appropriate management of chronic medical conditions may support mental well-being. Recognizing persistent changes in mood or functioning and seeking professional help early may reduce the impact of depression.

Bursitis

Bursitis risk can sometimes be reduced by avoiding prolonged pressure on joints, using protective padding when kneeling or leaning, taking breaks during repetitive activities, and gradually increasing exercise intensity. Proper technique and conditioning can reduce excessive stress on joints and surrounding tissues. Treating underlying inflammatory diseases may also reduce recurrence. Cuts or skin infections near a bursa should be managed appropriately because bacteria can enter the bursa. Persistent swelling, warmth, redness, or fever should be evaluated promptly.

Risk Factors

Major Depressive Disorder

Risk of major depressive disorder may increase with family history, previous episodes of depression, stressful or traumatic life events, certain chronic medical conditions, long-term pain, substance or alcohol use, and other mental health conditions. Depression can occur even without an identifiable risk factor or family history.

Bursitis

Risk factors for bursitis include repetitive joint movements, prolonged pressure on a joint, occupations or sports involving repetitive activity, direct trauma, increasing age, and inflammatory diseases such as rheumatoid arthritis or gout. Infection can cause septic bursitis, particularly when bacteria enter through damaged skin. Previous bursitis may increase the likelihood of recurrence if the activity or underlying condition continues. Proper technique, gradual conditioning, and protection from repeated pressure may reduce some risks.