Clothing, anal and menstrual hygiene

Body odour is not the smell of sweat itself. Two different kinds of sweat gland matter here. Eccrine glands, found over most of the body, release a watery, almost odourless fluid whose main job is cooling by evaporation. Apocrine glands are concentrated in the armpits and the ano-genital region, and they only become active at puberty under the influence of sex hormones. Their secretion is thicker: it carries proteins, lipids and steroid compounds. That secretion is still nearly odourless when it leaves the gland. The smell appears later, when resident skin bacteria — mainly corynebacteria and staphylococci — digest these molecules with enzymes and release volatile fatty acids and sulfur-containing compounds. The clinical name for this offensive odour is bromhidrosis, or bromidrosis. This explains several practical rules at once. A moist, warm, unventilated fold keeps the bacteria in contact with their substrate for hours, which is why occlusive synthetic underwear worsens the problem and cotton or loosely woven clothing improves it. Washing removes both the fresh secretion and the dead cells and bacterial film, so it treats the cause. Deodorants reduce odour by slowing bacterial growth or masking the acids, and antiperspirants reduce sweating with aluminium salts, but neither removes the substrate the way washing and drying do. A nurse should also recognise when odour is not routine: a sudden change, a persistent smell with itching or discharge, or odour from one axilla only may indicate a fungal, bacterial or skin disorder and deserves examination rather than more deodorant.

The perineum is the diamond-shaped region between the pubic symphysis in front, the coccyx behind and the ischial tuberosities at the sides. In women it contains the vulva — the external genital structures, not the vagina — and the anus; in men it contains the scrotum, the base of the penis and the anus. The anal canal ends at the anal verge, which is surrounded by the corrugated muscular ring of the external anal sphincter and by skin folds called the anal crypts and perianal skin tags. These folds serve a purpose, but they also trap tiny residues of faeces after defecation, and the area stays warm and moist under clothing, with a resident flora in which Escherichia coli and other enteric organisms are normal. Cleansing exists to remove that residue and to interrupt the transfer of faecal organisms to the hands. Abrasive materials defeat the purpose. Stones, sticks, corn cobs and coarse leaves act like sandpaper on skin that is thin, folded and poorly keratinised; they produce micro-abrasions invisible to the eye. Each break is a portal of entry for faecal bacteria and can progress to a painful perianal abscess or a spreading cellulitis, especially in a person with diabetes or a weakened immune system. Rags carry a second risk: if the rag is reused and damp, it holds bacteria and deposits them on the skin instead of removing them. Soap and water alone are also not ideal for the delicate perianal skin in large amounts, because they strip natural oils and can cause contact irritation; gentle washing with clean water and thorough drying is usually enough. After washing, the nurse should dry the area by patting, not rubbing, and teach the patient to move the cloth from front to back in women so that faecal organisms are not carried forward to the urethra. This single direction rule reduces urinary tract infections, which is why it appears in every basic nursing text.

Clothing works as a sandwich of thermal and moisture layers. The inner layer absorbs perspiration by capillary action and holds it against the skin; the outer layer sheds dirt and protects the inner one. This is why the two layers soil at different rates and why the recommendations differ: the ideal is a fresh inner layer every day, and when that is impossible the workable minimum is a fresh inner layer at least every two days and outerwear about once or twice a week; the supplied notes give a figure of two changes of inner wear and twelve of outerwear per week, which is arithmetically impossible and inverted and is therefore not repeated as a rule here. The underlying logic is not arbitrary. Underwear is washed more often because it accumulates the biological load — sweat, sebum, desquamated keratinocytes — that micro-organisms need, while outerwear mainly collects dust, food and environmental dirt. Laundering removes this load through four interacting actions: the detergent lifts oily soil from the fibres, the water carries it away, mechanical agitation dislodges particles, and heat or drying kills many organisms. That is why clean water, adequate soap and a proper washing place are treated together as the requirements for clothes hygiene. Heat is the specific weapon against infestation. Pediculus humanus corporis, the body louse, lives in the seams of clothing rather than on the skin, and it glues its eggs, called nits, to the fibres. Ordinary cold washing may leave both alive. Ironing with a hot iron, boiling the garment, or applying an approved insecticide destroys them, and the notes list these three options. Two further points belong to nursing practice. First, a clothes-washing programme must plan for drying and storage: a garment dried in damp shade and stored in a closed, airless place simply grows mould and keeps moisture, so washing without drying is only half a solution. Second, lice spread through shared bedding, crowded sleeping and shared clothing, so treating one child’s clothes without treating the household will not stop reinfestation. The nurse therefore treats the household, gives simple written instructions, and checks during follow-up that the heat step — ironing or boiling — is actually happening.

The vagina maintains itself through a partnership with Lactobacillus bacteria that convert glycogen from the vaginal epithelium into lactic acid, keeping the environment slightly acidic. This acidity discourages many pathogens and is the reason the notes say the vagina is able to clean itself and needs no special internal care. Douching with soap or commercial preparations, and the perfumed sprays sold for the same purpose, remove or neutralise the lactic acid, disturb the Lactobacillus population and can leave the vagina more vulnerable to bacterial vaginosis and candidiasis. The correct action is external: wash the vulva with clean water daily, from front to back, and dry it. During menstruation the rules sharpen because blood is an organic, nutrient-rich fluid at body temperature — an excellent culture medium. A pad or tampon therefore has a safe working life measured in hours; the usual teaching is roughly every four to eight hours depending on flow, with a pad changed as soon as it is soiled. Tampons deserve a specific warning. Leaving one in place too long, especially a high-absorbency tampon, is associated with toxic shock syndrome, a rare but life-threatening illness caused by staphylococcal toxins. The nurse should teach a girl to use the lowest absorbency that controls her flow, to change tampons at least every four to eight hours, to alternate with pads, and to remove a tampon immediately and seek care if she develops a sudden high fever, vomiting, a sunburn-like rash, dizziness or muscle pain. Reusable cloths are a legitimate alternative where pads are unaffordable, but only if the routine is complete: wash with soap and clean water, rinse thoroughly, dry fully in direct sunlight or iron before reuse, and store dry. A damp cloth reused repeatedly causes vulval irritation and can introduce organisms, which is why dirty cloths are discouraged. Finally, disposal is part of hygiene, not an afterthought. Blood-soaked items attract flies, can spread infection and cause offence if left in the open, so they must go into a latrine, an incinerator or, as the notes specify, a burial pit or another appropriate method. In health facilities, used pads are treated as potentially infectious waste and segregated accordingly, never placed in general refuse.