A lack of strength in the muscles is called muscle weakness. Some of the common causes include anemia, electrolyte imbalance, diabetes, overuse, fibromyalgia, hypothyroidism, infections, various neurological disorders (multiple sclerosis, ALS), and certain medications.
Multiple Sclerosis - Types, Symptoms, Causes, Diagnosis, and Treatment
Multiple sclerosis is a chronic autoimmune disease that affects the protective sheath (myelin) that covers the nerves of the brain and spinal cord.

Inguinal hernia - Causes, Symptoms, Prevention, Diagnosis, and Treatment
A hernia occurs when a portion of the abdomen pushes through a hole in the abdominal wall. To know more, read the article below.

Effects of Aging on the Musculoskeletal System
The extent of aging in the musculoskeletal system (muscles, joints, and bone) during the life course impacts the quality and length of life.
Acute Neuromuscular Weakness - Causes and Treatment
Acute neuromuscular weakness is characterized by a sudden onset of muscle weakness that may progress and become severe within a few days to weeks.
Mononucleosis - Symptoms, Causes, Diagnosis, Treatment, and Complications
Mononucleosis, commonly known as kissing disease, is a viral infection that commonly affects teenagers. Read the article to know about its symptoms, causes, risk factors, diagnosis, treatment, and complications.
Spinal stenosis - Causes, Symptoms, and Treatment
The narrowing of the space where the spinal cord runs in the spine is called spinal stenosis. Read about its causes, symptoms, and treatment options.

Ganglion Cyst - Symptoms, Causes, Diagnosis, and Treatment
A ganglion cyst is a noncancerous, fluid-filled lump that occurs in joints or tendons. Often, it clears up on its own without any intervention.

Scapular Winging - An Overview
Scapular winging affects the shoulder blades and occurs due to muscle weakness. To learn more about scapular winging, read this article.