Dr. Karl J Sandin M.D.

One of the most common reasons why people visit their doctor is their back pain. According to the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), 8 out of 10 people have some type of back pain. The pain originates in the spine and can manifest in multiple forms. The...

A headache experienced in the back of the head can have many different causes. Most of these causes can be identified by specific symptoms, such as the exact location of pain and the type or severity of pain experienced. In some cases, certain events can trigger these headaches.  CausesDoctors can...

Having rheumatoid arthritis means sticking to certain lifestyle practices. Rheumatoid arthritis happens due to large-scale inflammation in the body, which typically affects the joints. The condition causes immobility and severe pain as the inflamed joints makes it painful to move. Rheumatoid...

What is sacroiliitis?An inflammation of one or both sacroiliac joints is known as sacroiliitis. This condition happens when the lower spine and pelvis connect. In other words, we can say that a sacroiliac joint is the union of the sacrum and ilium. The sacroiliac joint is bound by thick ligaments...

What is rheumatoid arthritis (RA)?Rheumatoid arthritis is an autoimmune disease, wherein the immune system mistakenly attacks the joints leading to stiffness, pain, and inflammation. Gradually, RA can lead to physical deformities. Rheumatoid arthritis is known to affect around 2 million Americans....

Muscular dystrophy is a category of muscle diseases that cause progressive weakness and loss of muscle mass.  Muscular dystrophy (MD) is either inherited or can be due to a genetic mutation. Kids with MD usually follow a normal pattern of growth development in the first few years of their lives,...