The submandibular gland is one of the major salivary glands located beneath the jaw, on either side of the mouth. Disorders affecting the submandibular gland can lead to various symptoms and complications. Some common submandibular gland disorders include:

• Sialadenitis: This is the inflammation of the salivary glands, including the submandibular gland. It can be caused by bacterial or viral infections, obstruction of the salivary ducts, or reduced saliva flow. Symptoms may include pain, swelling, redness, and difficulty swallowing.
• Sialolithiasis: This condition occurs when stones (calculi) form within the salivary ducts, obstructing the flow of saliva. It commonly affects the submandibular gland and can cause pain, swelling, and infection. Treatment may involve massage, hydration, sour candies to stimulate saliva flow, or in some cases, surgical removal of the stone.
• Sjögren's syndrome: An autoimmune disorder where the immune system attacks and damages the salivary glands, leading to reduced saliva production. This can affect both the submandibular and parotid glands. Dry mouth, difficulty swallowing, and an increased risk of dental problems are common symptoms.
• Neoplasms: Tumors or growths in the submandibular gland can be benign (non-cancerous) or malignant (cancerous). Symptoms may include swelling, pain, and difficulty moving the tongue or swallowing. Treatment depends on the nature of the tumor and may involve surgery, radiation, or chemotherapy.
• Ranula: A cyst that forms due to blockage of the submandibular gland duct, leading to the accumulation of saliva. This can cause a swelling on the floor of the mouth. Treatment options include draining the cyst or surgical removal.

If you suspect you have a disorder of the submandibular gland, it is important to consult a healthcare professional for a thorough examination and appropriate diagnosis. Treatment will depend on the specific disorder and its underlying cause.