Vitamin D

What Is Infertility in Males? Infertility in males is characterized by inability to either produce sperm or to produce viable sperm or mobile sperm resulting in prohibiting fertilization of the female ovum (egg). To the left is a false-colour scanning ...

What Is Impotence? Impotence is an erectile dysfunction disorder in males characterized by the distressing inability to achieve or maintain an erection satisfactory for coitus. What Is Impotence In Celiac Disease and/or Gluten Sensitivity?

What Is Unexplained Adult Male Hypogonadism? Hypogonadism in males is a distressing reproductive disorder characterized by inadequate production of male andogen hormones and/or spermatozoa by the testes. Q: How do andogens affect reproductive health? A: Male androgen hormones control the ...

What Is Inflammatory Vaginitis? Inflammatory vaginitis, also called desquamative inflammatory vaginitis, is a female genital disorder characterized by non-infectious tissue inflammation of the vagina (birth canal). Inflammatory vaginitis presents in females of any age including girls with a history of discomfort, ...

What Is Primary Dyspareunia (Painful Intercourse)? Dyspareunia is a distressing female genital disorder characterized by pain during or after coitus involving the labia, vagina or pelvis. There are two types of dyspareunia: primary which affect the vagina itself in the ...

What Is PMS (Premenstrual Syndrome)? Premenstrual syndrome is a menstrual disorder that occurs regularly during the last week of the luteal phase of the menstrual cycle and starts to subside a few days before menstruation begins and is absent the ...

What Is Psoriatic Arthritis? Psoriatic arthritis is a joint manifestation of psoriasis, a systemic autoimmune disease, characterized by asymmetric involvement in one or more joints, especially affecting the distal phalangeal joints of fingers and toes (joints nearest nails). In some ...

What Is Osteomalacia? Osteomalacia is a metabolic bone disorder that causes abnormal skeletal changes characterized by generalized reduction in bone density (bone softening) in adults and pseudofractures (apparant on x-ray) with muscular weakness and bone tenderness. Bones have the normal amount of ...

What Is Osteitis Fibrosa Cystica? Osteitis fibrosa cystica is a metabolic bone disease characterized by decalcification and softening of bones with bone cyst formation and bone tumors developing from effects of chronic vitamin D deficiency causing hyperparathyroidism and parathyroid adenoma ...

What Is Bone Pain? Bone pain is pain or tenderness in bone tissue. Bone pain intensity and location depend on the causative disorder. Q: What are causative disorders of bone pain? A: Bone pain is a feature of various disorders ...

What Is Gait Ataxia? Gait ataxia is a cerebellar (lower brain) disorder characterized by defective muscular coordination of skeletal muscles used for locomotion (walking). Q: What is defective muscle coordination for walking? A: The cerebellum does not initiate movements but ...

What Is Acquired Ichthyosis? Acquired ichthyosis is an uncommon, nonhereditary cutaneous disorder characterized by dry, rough skin with prominent symmetrical scaling that involves significant portions of the body. Most microscopic studies of acquired ichthyosis exhibit hyperkeratosis (thickened skin) with a ...

What Is Primary Hyperparathyroidism? Primary hyperparathyroidism is a parathyroid disorder characterized by excessive secretion of parathyroid hormone by one or more parathyroid glands for more than 6 months. In primary hyperparathyroidism, blood calcium levels are high while phosphorus levels are ...

What Is Laryngospasm? Laryngospasm is an acute disorder of the larynx that is characterized by life-threatening spasms of the muscles of the larynx located in the throat. Laryngospasm is a rare feature of hypocalcemia (low blood calcium level) characterized by ...

What Is Hypocalcemia? Hypocalcemia, or low plasma calcium, means the level of calcium in blood is too low to meet metabolic needs of the body for calcium. Low blood calcium is characterized by bone and tooth demineralization (loss of calcium ...